This article or subsection has an associated category. | Alpha and Beta Quadrant races and cultures |
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This is a list of races and cultures that inhabit the half of the galaxy containing the Alpha and Beta Quadrants.
0-9
A
- Aaamazzarite
- Aaine
- Aarakian
- Abalekite
- Abaris native
- Abbutan
- Abductor
- Abesian (TOS novel: The Shocks of Adversity)
- Acamarian
- Achorri
- Adarin
- Adigeon
- Aegis
- Assigner (TOS episode: "Assignment: Earth")
- Counter Strike
- Aenar
- Aeorethian
- Aeron
- Agaron
- Agni (TOS novel: The Captain's Oath)
- Aia native (PIC episode: "Broken Pieces")
- Airee (TOS novel: The Children of Kings)
- Ajanni (STA novel: Oblivion)
- Ajir
- Akaali
- Akkallan (TOS novel: Deep Domain)
- Aklaash (TNG novel: Progenitor)
- Alajian (TNG novel: Exiles)
- Alariin (TOS novel: Doctor's Orders)
- Alastron
- Albali
- Alcyone (TNG episode: "Haven")
- Aldean
- Aldebaranan
- Alerian
- Alesian
- Algolian (TNG episode: "Ménage à Troi")
- Algorian
- Alhambra conn officer's species (LD episode: "Veritas")
- Alhambra operations officer's species (LD episode: "Veritas")
- Al'Hmatti
- Alien bar staff's species (LD episode: "Second Contact")
- Alien command officer's species (LD episode: "Second Contact")
- Alien ensign 1's species (LD episode: "Second Contact")
- Alien ensign 2's species (LD episode: "Second Contact")
- Alien reprogrammer's species
- Alien technician's species (TOS episode: "The Lights of Zetar")
- Aliens in dresses' species (TOS episode: "Journey to Babel")
- Alkamin (TNG comic: "Ill Wind, Part Two")
- Allasomorph
- Alliosian (TNG comic: "Ghosts, Issue 1")
- Al-Leyan (TNG episode: "The Chase")
- Alonis
- Alpha 23-C lifeforms (TOS comic: "The PsychoCrystals")
- Alpha Carinae II native (TOS episode: "The Ultimate Computer")
- Alpha Centauran
- Alpha Jem'Hadar
- Alpha Laputa IV inhabitant (TNG episode: "Chain of Command")
- Alpha Malurian (TOS novel: Faces of Fire)
- Alphan (Onyius II)
- Alphan (Sector 221-G)
- Alphaurian (TOS comic: "Furlough to Fury")
- Alpheccan
- Alpusta (TNG novel: Gemworld, Book One of Two)
- Alraki
- Alsandit (TOS comic: "Scaean Gate")
- Altairian
- Altair VI native (TOS novel: The Fire and the Rose)
- Altarian (TOS novel: The Kobayashi Maru)
- Altasa
- Althuist
- Aluwnan (TNG novel: Genesis Force)
- Amaralan
- Ambimorph
- Ammdon
- Ammonite (TNG novel: The Captain's Table no.2o)
- Amoniri
- Amphibian gelforms of Sirius B III
- Ana'siuolo
- Anabaj (LD episode: "Envoys")
- Anacontor native (TOS novel: World Without End)
- Ancient generation ship mummies' species (LD episode: "Moist Vessel")
- Andalusian
- Andoran (DS9 episode: "Q-Less")
- Andorian
- Andorran (TOS novel: Corona)
- Andrean
- Andreazna
- Andrius native (TOS comic: "Rock and a Hard Place")
- Andromedan
- Andronican (TOS comic: "... Like a Woman Scorned!")
- Androssi
- Angel I inhabitants (TNG episode: "Angel One")
- Angiran
- Angol'rey (Plagues of Night novel:)
- Angoman
- Angosian
- Aniona
- Anjiri (TOS novel: War Dragons)
- Anjottu (STA novel: Oblivion)
- Anjurwan
- Anjyyla (TOS novel: Starfleet: Year One)
- Ankaa native (TOS novel: Exiles)
- Annoi (Star Trek: The Next Generation Companion (p. 24))
- Antaran
- Antaranan (TNG novel: The Best and the Brightest)
- Antarean
- Antedean
- Antianna
- Antican
- Antidean (DS9 episode: "Doctor Bashir, I Presume")
- Antosian
- Antos Veria IX Native (TOS comic: "Error")
- Anu'anshee
- Anyorrite
- Apergosian (LD episode: "Strange Energies")
- Aquan of Argo (TAS episode: "The Ambergris Element")
- Aquan (Elysian Council) (TAS episode: "The Time Trap (episode)")
- Arachnian
- Arachnid (species)
- Aragos (TOS novel: Chain of Attack)
- Araldii (TOS novel: Captain's Glory)
- Arbazan
- Arcadian
- Arcanian
- Archarian (TNG novel: Infection)
- Archernarian
- Architects
- Arcimi
- Arcturan
- Arctus Baran's species (TNG episode: "Gambit, Part I")
- Ardanan
- Ardwanian
- Areian (TOS novel: The Better Man)
- Areolan
- Aretian
- Argelian
- Argon
- Argontron
- Argosian
- Argylus native (TOS comic: "Child's Play (comic)")
- Arian
- Ariantu (TNG novel: Doomsday World)
- Ariman
- Ariolo
- Arivne
- Arixxian
- Arkalian (TNG novel: The Body Electric)
- Arkarian
- Arkenite
- Arkonian
- Armusian (TNG novel: Doors Into Chaos)
- Arn (TOS novel: Shell Game)
- Arnu
- Arodi inhabitant or Regulan reptilian
- Aronnian (TOS novel: Where Sea Meets Sky)
- Arretian
- Arteline
- Artonian
- Arunuan (TNG novel: To Storm Heaven)
- Asarion
- Ashkaarian (STA novel: Deceptions)
- Astonian (TOS comic: "Stranger Worlds, Issue 1")
- Asvienne (TNG comic: "Ill Wind")
- Atawhean
- Artemysian (TOS comic: "All the Ages Frozen")
- Athan
- Atifs IV inhabitant (TNG episode: "Manhunt")
- Atrean
- Atreonid (Star Trek Roleplaying Game (Decipher):Aliens)
- Attrexian
- Atyansa (TOS comic: "Epic Proportions")
- Aulacri
- Aunithox
- Aurelian
- Austaran (TOS novel: Long Shot)
- Avrosian (TOS novel: Ex Machina)
- Axanarri
- Axerii (TNG novel: Boogeymen)
- Azar
- Azziz
B
- Bactrican
- Bader
- Baezian (TOS novel: The Captain's Oath)
- Baha-Shan's species (TOS comic: "Cry Vengeance (TOS comic)")
- Bahn Vort
- Bajoran
- Ba'ku
- Bakadan (TOS comic: "Acceptable Risk")
- Bakrii
- Bal Quonnot (TNG novel: Red Sector)
- Baladonian (TTN novel: Absent Enemies)
- Balant
- Balduk
- Baldurian (TOS novel: The Antares Maelstrom)
- Baloran's species
- Balosneean
- Bandelaar (TNG novel: Planet X)
- Bandi
- Banean
- Baneriam
- Banyanan (TNG novel: The First Virtue)
- Barak-7 native
- Barash's species (TNG episode: "Future Imperfect")
- Barbarbaar'yoat (TOS novel: The Kobayashi Maru)
- Bardakian
- Barkonian (TNG episode: "Thine Own Self")
- Barolian
- Barreon
- Barzan (TNG episode: "The Price")
- Bataku
- Batashai
- Baustin
- Bavaryan
- Bebebebeque
- Behemoth (creature) (TOS comic: "Behemoth, Part 1")
- Beings
- Belandrid
- Belgarian
- Benniari
- Benzite
- Berellian
- Beshwa (TOS novel: Spock, Messiah!)
- Besinian
- Betan
- Beta Antares IV native (TOS episode: "A Piece of the Action"
- Beta Aurelonite (TOS novel: Shadows on the Sun)
- Beta Epsilon VI Native (TOS comic: "Mortal Gods")
- Beta Promethean
- Betarian (DIS episode: "The Butcher's Knife Cares Not for the Lamb's Cry")
- Betazoid
- Betelgeusian
- Betrisian
- Beystohnai (TOS novel: Enemy Unseen)
- Bhvui
- Bijani
- Bilanan
- Bilini
- Binderian
- Binzalan (TOS comic: "A Little Adventure...")
- Birani (ST novel: Klingon)
- Bixoxi
- B'kaazi
- Blagee
- Bline
- Blood (TOS novel: Wagon Train to the Stars)
- Bluegill
- B'Moth
- B'Nai (TOS comic: "Year Four, Issue 1")
- B'nurlac
- Boacan (TOS novel: The Cry of the Onlies)
- Bogati (TOS novel: Exiles)
- Bogosrin
- Bolastre
- Bolian
- Boodinji (TNG novel: Deceptions)
- Boraalan
- Boragi
- Borothan (TTN novel: Sight Unseen)
- Borzhan
- Boslic
- Boundarian
- Braalian (TOS comic: "Star Trek—Legion of Super-Heroes, Issue 4")
- Bracon (TOS novel: A Contest of Principles)
- Brancherion (TNG novel: Metamorphosis)
- Brassica
- Bre'ella
- Breen
- Breg'hel (TOS novel: The Latter Fire)
- Brekkian
- Brenlekki (TNG novel: A Time for War, A Time for Peace)
- Bresian
- Brethren
- Brevant (TOS novel: One Constant Star)
- Brian's species (TOS comic: "Star Trek Movie Adaptation, Number Two")
- Briavian
- Brikarian
- Brobdingnagian (TAS episode: "The Terratin Incident")
- Brozul
- Brunyg (TNG novel: The Buried Age)
- B'Saari
- B'Tin (TOS comic: "The Price of Admission!")
- Buban
- Buice (TOS comic: "The Sentence")
- Builders (TNG novel: The Peacekeepers)
- Buqret
- Burala Prime inhabitant (ENT episode: "Canamar")
- Burani
- Bursen
- Bwujan
- Byfrexian
- Bynar
- Byndarite
- Byzallian (DS9 episode: "Defiant")
- Bzzit Khaht
C
- Cabbi
- Caeliar
- Cairn (TNG episode: "Dark Page")
- Caitian
- Calderisi
- Caldonian (TNG episode: "The Price")
- Caldorian
- Calid
- Calix
- Calligar
- Calphan
- Caltarian
- Caltiskan (TNG novel: Dead Zone)
- Calydon species (TOS comic: "A Small Matter of Faith")
- Camorian
- Camorite (TNG episode: "Bloodlines")
- Camus II native (TOS episode: "Turnabout Intruder")
- Canaran (TOS novel: Web of the Romulans)
- Canopian (ST video game: Starship Creator)
- Cancri (DIS episode: "Lethe")
- Cantilac (TNG novel: A Call to Darkness)
- Capellan
- Capitano (TNG novel: Double or Nothing)
- Caradian
- Caraq
- Cardassian
- Carnak (TOS comic: "Where Giants Tread")
- Carnelian (DTI novel: Watching the Clock)
- Caroustai [citation needed]
- Carreon
- Carrig (TNG comic: "Ill Wind")
- Carvargna (NF novel: Once Burned)
- Casmarvan
- Cataxxan
- Catelox
- Catellox (TNG novel: Spartacus)
- Catullan
- Caxtonian
- Ceebriian
- Celes II inhabitant (TNG movie: Star Trek Nemesis)
- Celotti
- Centaurrin (TNG novel: Intellivore)
- Centaurian
- Cerebusian (TNG episode: "Too Short a Season")
- Cereonian (TOS comic: "The Saboteur Within")
- Certoss (TOS novel: From History's Shadow)
- Cetan (TOS novel: Crisis on Vulcan)
- Chadrican (TOS novel: Shadows on the Sun)
- Chakuun
- Chalchaj'qmey
- Chalnoth
- Chameloid
- Chandran (TOS novel: Sacrifices of War)
- Chandir
- Changed
- Chardeni (TNG novel: Planet X)
- Charellian (TOS novel: Uhura's Song)
- Charulhan
- Chat (VOY novel: Quarantine)
- Chatalian (TOS novel: World Without End)
- Chelon
- Chemizoid (TOS novel: The Fearful Summons)
- Chenari (TOS novel: Provenance of Shadows)
- Cheronian
- Chezzulid (STA novel: Oblivion)
- Chiarosian (TNG novel: Collateral Damage)
- Children of Khan
- Children of San-Tarah
- Children of Soong
- Children of the Storm
- Chir'vaji
- Chiroptera native (TOS novel: Death's Angel)
- Choblik
- Chodak
- Choraii
- Chorymi (TOS novel: Deep Domain)
- Christofian (TOS comic: "Getaway")
- Chrysalian (TNG episode: "The Price")
- Chu-sa's species (TOS comic: "The Trouble with Transporters!")
- Chuniikite
- Ciari (TTN novel: Sight Unseen)
- Cineen
- Circassian
- Citoac
- Clan Ru
- Clarus IV native (Revelation and Dust novel:)
- Clicket (LD episode: "Veritas")
- Cloud Whale
- Coalescence
- Cogenian
- Cognoscente (TNG novel: Strike Zone)
- Coluan (TOS comic: "Star Trek—Legion of Super-Heroes, Issue 4")
- Comarian
- Companion's species (TOS episode: "Metamorphosis")
- Conani
- Cordian
- Cordovian
- Cordracite (TNG novel: The First Virtue)
- Corellian
- Coridanite
- Corillian
- Corotican
- Corvallen
- Cos' species (DS9 episode: "Rivals")
- Crawler
- Craxithesus
- Craynid
- Creeg
- Crellonese (TOS novel: Captain to Captain)
- Crepusculan (DIS episode: "The Vulcan Hello")
- Crier (TOS comic: "Silent Cries")
- Critter
- Cruller
- Crysallid (TOS novel: Dreams of the Raven)
- Culinan native (TNG novel: A Rock and a Hard Place)
- Cyderian
- Cygnetan
- Cygneti (TNG novel: Losing the Peace)
- Cygnian
- Cygnusian
- Cynosure (TNG comic: "Ill Wind")
- Cyprian (TOS novel: Child of Two Worlds)
- Cyrean
- Cytherian
- Cytrops 469 native (TOS novel: The Fearful Summons)
D
- Daarlin (TOS novel: Distress Call!)
- Daa'Vit
- Dai-ai
- Dachlyd (TNG episode: "Captain's Holiday")
- Dak-Alphan (TOS comic: "Revolt on Dak-Alpha")
- Dakhrian (TOS novel: Corona)
- Daliwakan (VOY episode: "The Cloud")
- Dalok
- Dalzell native (TOS novel: Death's Angel)
- Damiani
- Danai (TOS novel: Aftershock)
- Dancidii
- Danon (TOS novel: Devil World)
- Danteri
- Dantrian (TOS novel: The Pandora Principle)
- Danurian
- D'Arsay
- Daranian
- D'aveedi (TNG novel: Exiles)
- Darronite
- Darzun
- Dassik (TOS novel: The Face of the Unknown)
- Datugan (TOS comic: "So Near the Touch")
- Daxxtarian
- D'drauk'k
- Deadly One (TOS comic: "Captives in Space")
- Deaseru [citation needed]
- Debrune
- Dedderac
- Dee'Ahn's species (ENT episode: "Two Days and Two Nights")
- Deemanot
- Deferi
- Deirr
- Dekendi (ENT episode: "Stigma")
- Dekkani (TOS novel: Rules of Engagement)
- Delarian native (TOS comic: "Tomorrow Never Knows!")
- Delbian
- Delios VII native (VOY episode: "Sacred Ground")
- Dellri
- Delosian (TOS novel: Aftershock)
- Delphine
- Delphinian
- Deltan
- Delta Thetha III native (TAS episode: "Bem")
- Deneb species:
- Denesthian (TNG novel: The First Virtue)
- Denevian (TOS novel: One Small Step)
- Denn
- Denobulan
- Denoceti
- Denovian (TOS novel: Ghost-Walker)
- Dephinian
- Derevo (TNG novel: Infiltrator)
- Descalian [citation needed]
- Destan
- Devernian (TOS novel: Where Sea Meets Sky)
- Devidian
- Dewan
- Dhauti (TOS comic: "As Flies to Wanton Boys")
- Dhoraxi
- Diasoman
- Dibdinagii (TNG novel: IFortune's Light)
- Dimoran (TOS novel: Enterprise)
- Dinaali
- Dinac (TTN novel: Sight Unseen)
- Dinasian
- Dioptan (TOS novel: Vulcan's Glory)
- Disarrui
- Discordian (TOS novel: From the Depths)
- Distotian
- Distrellian (TOS novel: Mudd in Your Eye)
- Ditelan (TNG novel: Doomsday World)
- Division 14 nurses' species (LD episode: "Much Ado About Boimler")
- DiWahn (TNG novel: The Devil's Heart)
- Djanai
- Djelifan (TOS novel: Windows on a Lost World)
- DjKen
- Djoser native (Death's Angel novel:)
- Dlascru (TNG novel: The Buried Age)
- D'Marr's species (ENT episode: "Oasis")
- D'myurj
- Dobrovian (TOS comic: "Beware the Beast")
- Dogs of War
- Dohelee (TOS novel: The Children of Kings)
- Dokaalan (TNG novel: A Time for War, A Time for Peace)
- Dolgari (TOS comic: "Come Away, Child")
- Dolpheel
- Dolysian (TOS novel: Peaceable Kingdoms)
- Dominator (TOS comic: "Star Trek—Legion of Super-Heroes, Issue 4")
- Dondran
- Donican
- Dooglasse (TNG novel: Dyson Sphere)
- Doopler (LD episode: "An Embarrassment Of Dooplers")
- Doosodarian (TNG episode: "Interface")
- Dopterian
- Doradin
- Dorelian (TOS novel: The Children of Kings)
- Dorkasi (TOS novel: The Vulcan Academy Murders)
- Dormakeen
- Dormon
- Dorset
- D'Ort'd (TNG novel: Boogeymen)
- Dosai
- Dourami (TOS novel: The Children of Kings)
- Douwd
- D'prayl (STA novel: Enigma)
- Draa'kon (TNG novel: Planet X)
- Draconian (TOS comic: "Siege in Superspace")
- Dramian (TAS episode: "Albatross")
- Dranoon (STA novel: Oblivion)
- Dray (TOS comic: "A Mirror for Futility")
- Draylaxian
- Dreamer (TOS comic: "The Dream Walkers")
- Drek'la
- Drella (TOS episode: "Wolf in the Fold")
- Drelb (TOS novel: Ishmael)
- Dreman
- Dridian
- Drilikan (TNG novel: Planet X)
- Drissana II native
- Dromax
- Drommian Belter (TOS novel: Ghost-Walker)
- Drookmani (LD episode: "Terminal Provocations")
- Dryad
- Dufaux (NF novel: Once Burned)
- Dumada (TOS novel: Twilight's End)
- Dunbarri (TOS novel: The Children of Kings)
- Duplicator (TOS novel: Phaser Fight)
- Duranian
- Durganian (TOS novel: Captain to Captain)
- Durikkan (TNG novel: The First Virtue)
- Durlan (TOS comic: "Star Trek—Legion of Super-Heroes, Issue 4")
- Duthulhiv (TOS novel: The Romulan Way)
- Dydak
- Dyrondite (STA novel: Deceptions)
E
- Ebinda'sar
- Ecatholan (TOS novel: Time for Yesterday)
- Ecnalian
- Edari
- Edemian
- Edo
- Edosian
- Eebrix (TOS comic: "Chekov's Choice")
- Eeiauoan
- Eerlikka
- Efrosian
- Eizand (TNG novel: Available Light)
- Eizax
- Ekorr
- Ekosian
- Elabrej (TNG novel: A Time for War, A Time for Peace)
- Elachi
- Elah (TOS novel: Belle Terre)
- Elasi
- Elasian
- El-Aurian
- Elaysian
- Eldorian
- Elethian (TOS comic: "Scaean Gate")
- Elisurian
- Ellesant
- Elohsian (TNG novel: The Romulan Stratagem)
- Elphasian
- Eldela (TNG comic: "Ill Wind")
- Ellora
- Eloksi (TOS comic: "The Savage Within")
- Elysian (TNG novel: Metamorphosis)
- Elysian Gods (TNG novel: Metamorphosis)
- Emi's species (ENT episode: "The Seventh")
- Eminian
- Eminiaran (Star Trek Roleplaying Game (Decipher):Worlds)
- Empyrean
- Ena
- Encari
- Enevian (NF comic: "Double Time")
- Enlightened
- Ennarian
- Enochian (TNG comic: "Embrace the Wolf")
- Enolian (ENT episode: "Canamar (episode)")
- Enser
- Entesri
- Erd'k'teedak
- Erelynian
- Eridani (species)
- Erisian (TOS novel: Probe)
- Erithian (TOS novel: Deep Domain)
- Eseriat
- Eshashu (TNG novel: Infection)
- Eska ENT novel: Patterns of Interference)
- Eskinoid (TNG novel: Collateral Damage)
- Estryllian (TOS novel: Pawns and Symbols)
- Etherian
- Ethnasian (TNG novel: The Captain's Table No.2)
- Etoshan
- Etrarian (TNG novel: Infection)
- Eulus native
- Evoran
- Exar's species
- Excalbian
- Excaliban
- Exiles (race)
- Exocomp
- Exomorph
- Eymorg (TOS episode: "Spock's Brain")
- Eyren
F
- Faantine
- Fabrini
- Faceless Ones
- Fado's species (TOS comic: "The Trial of Captain Kirk")
- Fallit Kot's species (DS9 episode: "Melora")
- Falorian (TOS novel: The Last Roundup)
- Farian
- Farrezzi
- Farruna
- Fayon
- Fazi
- Fek'Ihri
- Felidae (TOS comic: "Deity, Part 1")
- Fen Domar
- Fendarwi (TOS novel: Enemy Unseen)
- Fendaus V inhabitant (TNG episode: "Loud As A Whisper")
- Fenrisal
- Ferasan
- Ferengi
- Ferreth (TOS comic: "The Wristwatch Plantation")
- Fesarian (TOS novel: Second Nature)
- Fethetrit (TTN novel: Orion's Hounds)
- Fett
- Fiilestii
- Filian
- Filimase (TTN novel: Unification)
- Flaxian
- Floe
- Fomalhaut native (TOS novel: The Truth Machine)
- Fomorian
- Forebears
- Formless (TOS novel: Wagon Train to the Stars)
- Fornian
- Fortran (Culture) (TOS novel: Four Thousand Throats...)
- Fosstarian
- Fraddock's species
- The Free
- Free Trader
- Freelan (species)
- Frenni (TOS novel: Dreams of the Raven)
- Fri'slen
- Frill (TTN novel: Gemworld, Book One of Two)
- Frogman
- Frunalian
G
- Gabrallian (TOS novel: No Time Like the Past)
- Gadraaghi
- Gaen
- Galadoran (DS9 episode: "The Maquis, Part I")
- Galakhi
- Galardonian (LD episode: "Second Contact")
- Galbutian (TNG novel: Dead Zone)
- Gallamite
- Gallonikan
- Gallos II inhabitant TNG episode: "Darmok"
- Galt's species (TOS episode: "The Gamesters of Triskelion")
- Galvin V inhabitant TNG: episode: "Data's Day")
- Gamma 7A system inhabitant (TOS episode: "The Immunity Syndrome")
- Gamma Draconis VII inhabitant (TOS novel: The Entropy Effect)
- Garda
- Gardener
- Garidian
- Gavialian (TOS novel: Death's Angel)
- Gelchenite (TOS novel: The Three-Minute Universe)
- Gelrakian (LD episode: "Temporal Edict")
- Gemarian (TOS novel: The Captain's Oath)
- Gendlii (TTN novel: Gemworld, Book One of Two)
- Gentaran
- Genton (TNG episode: "Violations")
- Ghorusdan
- Gideonite
- Giron (TOS novel: The Final Artifact)
- Glaeziver
- Glath
- Gnalish
- Arklash (STA novel: Progenitor)
- Fejimaera (TTN novel: Seize the Fire)
- Mazzereht (STA novel: Progenitor)
- Gnome
- Gobi III native (TOS - Year Four comic: "Issue 6")
- Goceba
- Goeg (TOS novel: The Shocks of Adversity)
- Golanan (DS9 episode: "Time's Orphan")
- Goldronian (VOY novel: Children of the Storm)
- Golvonek (TNG novel: Headlong Flight)
- Goranian
- Gormelite (TNG novel: Collateral Damage)
- Gorn
- Gorodese
- Gororm
- Gorpion
- Gorwah
- Gosis' species (ENT episode: "The Communicator")
- Gottar
- Graktan (TOS comic: "Creeping Death")
- Grathon Tolar's species (DS9 episode: "In the Pale Moonlight")
- Graym
- Graymel
- Grazerite
- Great Builders
- Grennai
- Grepund (TOS novel: Crisis of Consciousness)
- Gretharan
- Grexxen (TOS novel: Past Prologue)
- Grey Orion
- Grezalian (TNG novel: Reunion)
- Grigari
- Grisellan
- Grokarian
- Grond (TOS comic: "The Trouble with Transporters!")
- Gruian
- Guat
- Guidon
- Gwirinthan (TOS novel: Ishmael)
- Gyomorian (TOS novel: Death's Angel)
- Gyuunyuu native (TOS novel: Death's Angel)
- G'kkau
- G'lops (TOS novel: The Starship Trap)
H
- Haakonan
- Habardian (TOS novel: The Captain's Oath)
- Haigy (TOS comic: "Once a Hero!")
- Hajara's species (TOS comic: "The Trial of Captain Kirk")
- Hajjlaran
- Hakshos (TNG novel: Crossfire)
- Halanan (DS9 episode: "Second Sight")
- Haliian
- Halkan
- Halogian (TOS comic: "Captain's Log: Pike")
- Hansen's Planet anthropoid or Homo Hansonii (TOS episode: "The Galileo Seven")
- Hamalki
- Hamexi
- Hanaja native (TOS novel: Death's Angel)
- Haradin
- Harahni (TOS comic: "No Compromise Part One")
- Harelian
- Haresh (NF comic: "Double Time")
- Harvester (TTN novel: Orion's Hounds)
- Harvongian (LD episode: "Cupid's Errant Arrow")
- Hassic (VOY novel: Quarantine (Starfleet Academy))
- Hasturian (TNG novel: The Body Electric)
- Hathine
- HD 1502 48 V native (TNG novel: The Autobiography of Jean-Luc Picard)
- Hebitian
- Hed'em'disol
- Heiren
- Heitian
- Hekaran (TNG episode: "Force of Nature")
- Helenite (TNG novel: Quarantine)
- Helvan
- Hemanite
- Hemiptera native (TOS novel: Death's Angel)
- Hemoda
- Hephaestan
- Heptarian (TNG novel: Q-Space)
- Herald
- Heran
- Herculese
- Hermat
- hest
- Het
- Hidran (TNG novel: Foreign Foes)
- Hiinkan
- Hinrichs 5 creature (TOS comic: "Lost Apollo, Part 1")
- Hipon
- Histite (TOS novel: Black Fire)
- Hlangry
- Hok'Tar (TNG novel: A Time to Die)
- Hoka
- Homn's species (TNG episode: "Haven")
- Hopi Kachina (TNG novel: Gulliver's Fugitives)
- Horrovan
- Horta
- Hoshan (TOS novel: Chain of Attack)
- HoSo
- Host (DS9 novel: Time's Enemy)
- Hradrian (TOS novel: Savage Trade)
- H'rator
- Hranrarii (TTN novel: Seize the Fire)
- Hreekh
- Huanni
- Hubrin
- Human
- Alcorian colonist (ST episode: "Calypso")
- Alpha Centauran
- Augment Human
- Human Mutant (TNG novel: Planet X)
- Humanoid creator
- Hysperian (LD episode: "Second Contact")
- Lara's species
- Lorcan (TNG novel: Masks)
- Magna Roman
- Magnian
- Martian
- Miri's species (TOS episode: "Miri")
- Mythran
- Neo-pygmy (TNG novel: Capture the Flag)
- Oorego IV native (TOS comic: "No Time Like the Past (comic)")
- Perry's Planet colonist
- Immune (TOS novel: Perry's Planet)
- Space boomer
- Terratin TAS episode: "The Terratin Incident")
- Humanoid Thrall's species ({{e|TOS|The Gamesters of Triskelion]])
- Huni (TOS novel: The Children of Kings)
- the Hunter's Species (TOS comic: "Behemoth, Part 1")
- Hupyrian
- Huraen
- Hurranit
- Husian
- Husnock
- Hyde's species (LD episode: "Mugato, Gumato")
- Hydran
- Hydrathi (TOS novel: The Antares Maelstrom)
- Hylan (TOS novel: Mutiny on the Enterprise)
- Hytaran
- H'Ramo (TOS novel: Captain to Captain)
I
- Iach'tui
- Iaktr (TOS novel: Vulcan's Heart)
- Ialatl (TOS novel: The Weight of Worlds)
- Iccobar
- Ichthyan
- Iconian
- Icorian
- Icorr (TOS novel: The Shocks of Adversity)
- Idanian (DS9 episode: "A Simple Investigation")
- Idryll
- Igaaren
- Igros
- I'Iglii
- Ikaaran (ENT episode: "E²")
- Ilaiyenai
- Ilari
- Illarhi
- Illqlii
- Illusionist (TOS comic: "Chekov's Choice")
- Illustrious Forebears
- Illyrian (ENT episode: "Damage")
- Ilorborode
- Iltrasian
- Ilyra VI inhabitant (TAS episode: "Mudd's Passion")
- Immortal (species) (NF novel: Fire on High)
- Imotru
- Impriman (TNG novel: IFortune's Light)
- Inanh (TNG novel: Doomsday World)
- Inari
- Indarrhi (TNG novel: The First Virtue)
- Infarret
- Ingavi
- Inicrust native
- Innaxxi (TOS comic: "Partners?, The Startling Conclusion!")
- Innix
- Intaran TNG novel: Sins of Commission)
- Intarian
- Interphasic organism (TNG novel: A Time for War, A Time for Peace)
- Invernian (DS9 episode: "Melora")
- Iomidian TNG novel: The Death of Princes)
- Iotian
- Iramahl (TOS novel: Elusive Salvation)
- Irapina
- Iren
- Irhennian
- Irlani (TOS novel: Epiphany)
- Irriol (TTN novel: Orion's Hounds)
- Iruhe
- Isitri
- Iskonian (TOS comic: "Restructuring Is Futile")
- Istarral (TNG novel: The Body Electric)
- Isthmian
- Ithenite
- Ixtoldan (TOS novel: The Folded World)
- Iyaaran
- Izad (TNG novel: The Best and the Brightest)
- Izaran
- Izarian (TOS novel: The Antares Maelstrom)
- I' Qosa (TOS comic: "Year Five, Issue 8")
- I'xati (TOS novel: Vulcan's Heart)
J
- Jaak
- Jadaral (STA novel: Oblivion)
- Jahnn!Xu
- Janduurian
- Jantaleyse
- Janvarian (TOS comic: "The Mindless Ones")
- Jarada
- Jaylah's species (TOS movie: Beyond)
- Jelna
- Jenisha
- Jenkth
- Jerakan (DS9 comic: "Shanghaied (comic)")
- Jerion
- Jeru
- Jezero native (TOS novel: Death's Angel)
- Jibetian
- Jodarr native
- Joridian
- Jovanian (TOS novel: The IDIC Epidemic)
- Julthan (EV comic: "Immortal Wounds")
- Jurnamorian (TOS novel: Mutiny on the Enterprise)
- J'naii
- J'smorru (TOS novel: No Time Like the Past)
K
- Ka'bu TNG novel: Insurrection)
- Kaelon
- Kaferian
- Kafrian
- Kago-Darr's species (ENT episode: "Bounty")
- Kalan (species) (TOS comic: "Cura Te Ipsum")
- Kalandan
- Kalani
- Kaldanni
- Kaldorni (TOS novel: Enemy Unseen)
- Kalean (DS9 episode: "Dramatis Personae")
- Kalin
- Kalmuri
- Kalystarian
- Kam'Jahtae
- Kan'ess
- Kandilkari (STA novel: Oblivion)
- Kangus IV native TNG novel: I, Q)
- Kantare
- Kanthropian
- Karabosi (TOS novel: The Captain's Oath)
- Kargite (TOS novel: Crossroad)
- Karimean (TOS comic: "Tomorrow Never Knows!")
- Karisian (TOS novel: The Antares Maelstrom)
- Karrian (TOS comic: "Shell Game (comic)")
- Karsid
- Kartoan (TOS novel: The Fearful Summons)
- Kasheeta
- Kasseelian (DIS episode: "Into the Forest I Go")
- Kasserite
- Kataan (TNG novel: Greater Than the Sum)
- Kataan native (TNG episode: "The Inner Light")
- Katan III native
- Katcherian
- Katellan (TOS novel: Killing Time)
- Kauld (TOS novel: Wagon Train to the Stars)
- Kavarian (TNG novel: Collateral Damage)
- Kavian
- Kavlian (VOY novel: Old Wounds)
- Kaylar
- Kazarite
- Kazleti (VOY episode: "Learning Curve")
- K'darite
- Jaalawa
- Phaanak
- Rengru
- Taaya
- Vis-Kal
- Kellerun
- Kellinan
- Kelrabian
- Kelvan
- Kelyan
- Kemoran TNG novel: Nova Command)
- Kenisian (TOS novel: Crisis of Consciousness)
- Keorgan
- Kerelian (TNG episode: "Lessons")
- Kerovian (VOY novel: Old Wounds)
- Kesprytt (TNG episode: "Attached")
- Kessok
- Kevrata
- Kezt
- Kh!lict (TOS novel: Windows on a Lost World)
- Kharzh'ullan
- Khimahni
- Khodini
- Khonodian (TOS comic: "Manifest Destiny, Issue 3")
- Khorani
- Khwopa native (LD episode: "Much Ado About Boimler")
- Khulli
- Khund
- Kihin (TNG comic: "Ill Wind")
- Kikmu (TOS novels: , One Small Step)
- Kimilon
- Kinaku (TOS novels: , The Higher Frontier)
- Kinshaya
- Kintarran
- Kisaja
- Kitarian (TOS novel: The Fearful Summons)
- Kitka (TOS novel: Ice Trap)
- K'la' bisi
- Klaestron
- Klaha
- Klah'kimmbri (TNG novel: A Call to Darkness)
- Klatoor native (TOS comic: "... Wild Goose Chase!")
- Klethorian
- Klimasz
- Klingon
- HemQuch
- Klingee (TOS novel: The Starship Trap)
- Krugeite (TNG novel: Hell's Heart)
- QuchHa'
- Fek'Ihri
- Kloog's species (TOS episode: "The Gamesters of Triskelion")
- Klystron
- Knishlinnaik native (TNG novel: Over a Torrent Sea)
- K'normian (Star Trek: The Motion Picture)
- Koas
- Kobheerian
- Kobliad
- Kodom
- Kohm
- Koinonian (TNG episode: "The Bonding")
- Kolaran (TNG novel: Star Trek Nemesis)
- Koltaari
- Konor (TNG novel: Metamorphosis)
- Konrac's planet native (TOS comic: "The Time Stealer")
- Koosbane native (TNG novel: Diplomatic Implausibility)
- Korlivilar (TOS video game: Starfleet Command Volume II: Empires at War)
- Korth
- Kosian (TOS comic: "The Trial")
- Kostolain (TNG episode: "Cost of Living")
- Kotakian (DS9 episode: "The Maquis, Part I")
- Kotati
- Koth
- Kovaalan (ENT episode: "E²")
- Kovar (people)
- Kovassii
- Kradian
- Kraetian (TOS novel: Seeds of Rage)
- Kraith (TOS novel: Demands of Honor)
- Krann (TNG novel: The Last Stand)
- Krantinese (TNG novel: TInto the Nebula)
- Kreel
- Kreetassan
- Krell
- Kressari
- Kriosian
- Kristenian (TOS comic: "Great Expectations!")
- Krit's species (DS9 episode: "Who Mourns for Morn?")
- Krole's species (DS9 episode: "Honor Among Thieves")
- Kropaslin
- Krotarian
- Kshatriyan (TOS novel: Corona)
- Ktarian
- K'taris
- Ktorran
- K'tralli
- Kujalan
- Kukulkan's species (TAS episode: "How Sharper Than a Serpent's Tooth?")
- Kumpen (TNG novel: Over a Torrent Sea)
- Kundilkari [citation needed]
- Kundriawag [citation needed]
- Kurlan
- Kursitan
- Kuthalian
- Kuwalden
- K'Vin
- Kwejian (DIS episode: "The Sanctuary")
- Kwettirian (TOS comic: "To Swiftly Go...")
- Kyppran (VOY novel: Acts of Contrition)
- Kyraw
- Ky'rha
- Kyrian
- Kyrosian (TOS novel: Spock, Messiah!)
- Kytharri
- Kzinti
L
- Lactran
- Lagorian
- Lahit
- Lakh VII Cyborg (TOS comic: "Aberration on Abaris")
- Lalairu
- Lamarian (TOS novel: The Last Roundup)
- Lanatosian
- Landorian (TOS novel: Blaise of Glory)
- Langian
- Lapitano [citation needed]
- Larell's species (DS9 episode: "Who Mourns for Morn?")
- Larinian [citation needed]
- Lars' species (TOS episode: "The Gamesters of Triskelion")
- Laudarian (TOS novel: Death's Angel)
- Lauriento
- Lavinian (TOS comic: "A Small Matter of Faith")
- L'Dira
- Legaran
- Lemnorian
- Lenarian (TNG episode: "Tapestry")
- Lendrin
- Lerikan (TOS comic: "God's Gauntlet")
- Lerow
- Lessenarian TNG novel: Sins of Commission)
- Lethanta (TNG novel: The Last Stand)
- Lethean
- Leyron (TNG episode: "Loud As A Whisper")
- Leyta native
- Lezze-Eeserk (TOS comic: "A Thousand Deaths")
- Life entity (TOS comic: "The Spectrum War, Issue 6")
- Ligewian
- Ligillian (TNG novel: The Buried Age)
- Ligonian
- Lineen
- Linnik
- Lipul
- Lirin
- Liruq (TOS novel: The Shocks of Adversity)
- Lissepian
- Litenite
- Lizard man (LD episode: "Crisis Point")
- Lo'kari (TOS comic: "Year Five, Issue 9")
- Locrian
- Lokra
- Lonat
- Lonatian
- Loperian
- Loque'eque (ENT episode: "Extinction")
- Lorealyn native
- Lorherrin (TNG comic: "Ill Wind")
- Lorian
- Lorillian
- Lorini (TNG novel: The Buried Age)
- Lortian (LD episode: "Cupid's Errant Arrow")
- Lothorian
- Lothra (DS9 episode: "Melora")
- Lotriani
- Lowarian (TOS comic: "Orphans (comic)")
- Lrondi (Seekers novel: All That's Left)
- Ludugian (DTI novel: Watching the Clock)
- Lukari
- Lumbuan
- Lumerian (TNG episode: "Man of the People")
- Lurassin (STA novel: Oblivion)
- Lurian
- Lusitanii (TOS novel: Doctor's Orders)
- Luss
- Lutralian
- L'Waht
- Ly
- Lycosian (TOS comic: "Odyssey's End (comic)")
- Lyran
- Lysian (TNG episode: "Conundrum")
- Lyssarrian (ENT episode: "Similitude")
- Lytasian
- L'rah'hane (TOS novel: Savage Trade)
M
- M-113 creature
- Ma-aira Thenn
- Maabas (TOS novel: Crisis of Consciousness)
- Mabrae
- Mach (TOS comic: "The Expansionist Syndrome")
- Machine Race (TNG novel: The Body Electric)
- Maegline
- Madigooran (TNG novel: The Captain's Table No.2)
- Magefferan
- Mahadabalamin
- Magistori (TOS novel: Shadows on the Sun)
- Magna Roman
- Magnian
- Makkusian
- Makon (TOS comic: "Inalienable Rights")
- Makusian
- Malakhai (TNG comic: "The Way of the Warrior (comic)")
- Malcorian
- Maligonq
- Maltos IV native
- Maltrisian
- Malurian (ENT episode: "Civilization")
- Mammaloid (TOS novel: First Strike)
- Manarkite (TOS comic: "Taking Shape")
- Manchovite (DS9 episode: "Business as Usual")
- Mandylorian
- Manhunter (TOS comic: "Stranger Worlds, Issue 1")
- Mannai
- Manochai
- Manraloth
- Manteiga native (TOS novel: Death's Angel)
- Mantis (species)
- Maqbari
- Maratekkan
- Marathan (TOS novel: Crisis on Vulcan)
- Marciak
- Marcipex (TOS novel: Ghost-Walker)
- Mardelvan (TOS comic: "Deceptions, Part II")
- Marishal (TOS novel: Time for Yesterday)
- Markanian
- Marmosan
- Maroan
- Maroni (TOS comic: "The Retirement of Admiral Kirk")
- Masters (Rigellian)
- Mastikaan (VOY novel: Day of Honor (novelization))
- Maszanian
- Matalinian TTN novel: The Red King)
- Matapedian
- Mathenite
- Maturin's species (TNG episode: "Sub Rosa")
- Mausetite
- Mavelan (TOS novel: No Time Like the Past)
- Mazarite
- Mazdan
- Mazzereht
- M'dok
- Meclanti
- Medusan
- Meganite (TOS comic: "Great Expectations!")
- Megaran
- Megarite (TOS novel: Ex Machina)
- Megasoid
- Megazoid
- Magnian
- Meguti (VOY novel: Children of the Storm)
- Melacron (TNG novel: The First Virtue)
- Melkor's species (TOS comic: "Orphans (comic)")
- Melkot
- Melthusian (TNG episode: "Night Terrors")
- Mempan
- Menaik
- Menas Baari
- Mendebelan
- Mendola's species
- Mengenite
- Menk
- Menthar (TNG episode: "Booby Trap")
- Mentite (TOS comic: "Haunted Honeymoon")
- Merakan
- Meraki (TOS novel: The Antares Maelstrom)
- Meram (TOS novel: Wagon Train to the Stars)
- Mercan
- Meropean (TOS novel: Across the Universe)
- Merp's species (LD episode: "Second Contact")
- Mertrovia'an (TOS novel: Enemy Unseen)
- Mesarth (TOS novel: Swordhunt)
- Meskeen
- Meskmaali (STA novel: Oblivion)
- Metamorphan
- Metan (TOS comic: "Collision Course!")
- Metar
- Metron
- Mezartine
- Meztorien (TOS novel: Windows on a Lost World)
- Miaplacidan (TOS comic: "The Quality of Mercy")
- Microbrain (TNG episode: "Home Soil")
- Midasite (TOS novel: The Antares Maelstrom)
- Middirona (TOS novel: Starfleet: Year One)
- Midgwin (TOS novel: Ghost-Walker)
- Midrossi
- Migleemo's species (LD episode: "Kayshon, His Eyes Open"
- Mikulak
- Milassoi (TNG novel: The Captain's Table No.2)
- Milgian
- Milikan (TNG novel: The Autobiography of Jean-Luc Picard)
- Miln
- Minaran (TNG novel: A Time to Hate)
- Minjo
- Minnobean (DS9 episode: "Business as Usual")
- Minoan (TOS novel: Web of the Romulans)
- Minosian
- Mintakan (TNG episode: "Who Watches the Watchers?")
- Miradorn
- Mirak (TOS video game: Starfleet Command Volume II: Empires at War)
- Mirrillon Shapers
- Mirmonot (TOS comic: "Quarantine (comic strip)")
- Mixtus inhabitant (LD episode: "Cupid's Errant Arrow")
- Mizarian
- Mizarthu (TOS novel: Ex Machina)
- M'jallanish TTN novel: The Red King)
- M'klexa
- Mnari (VOY novel: Old Wounds)
- Moauvian (TOS comic: "Passage to Moauv")
- Mobian
- Moborite
- Modalan
- Modar
- Molherian Firesoul
- Molmol's species (LD episode: "Where Pleasant Fountains Lie")
- Molodorian
- Molvon
- Momidium (NF novel: Fire on High)
- Monean (TNG novel: Over a Torrent Sea)
- Monchezkin
- Monsot
- Montosian
- Mook
- Moqausite (TNG novel: The Captain's Table No.2)
- Morali
- Morassian
- Mordaliia
- Mordanian
- Mordanite (TNG episode: "Too Short a Season")
- Morganite (TOS novel: Devil World)
- Morkolian (TOS comic: "Spheres of War")
- Moropa (TNG episode: "Allegiance")
- Mortard
- Morti native
- moss creature (TNG novel: Genesis Force)
- Motherlode Alien Miner's species (TAS episode: "Mudd's Passion")
- Mro
- Mrogar (TOS comic: "Star Trek Video Communicator")
- Muldanian (TNG novel: Loyalties)
- Muldorian
- Mulzirak
- Munqu
- Murani (TNG novel: Requiem)
- Murdoth
- Muton native
- Muuldaxan
- Mygdalian
- Mysstren (VOY episode: "Acts of Contrition")
- Mythran
- Myznek's species (TOS - Star Trek: The Manga - Shinsei Shinsei comic: "Side Effects")
N
- Naazh (TOS novels: , The Higher Frontier)
- Nabu native
- Nachri
- Nacmorian (TOS novel: The Captain's Oath)
- Nadorian (TOS novel: Gemini)
- Naiad
- Na'kuhl
- Na'mdeihei (TOS novel: The Wounded Sky)
- Nalori
- Nalynian
- Napean
- Nar-a-lethen (TOS novel: Epiphany)
- Nara'Gi (TOS novel: Rivals Part 1)
- Naran [citation needed]
- Narisian
- Narobi (TNG novel: Double or Nothing)
- Narr
- Narsican TNG novel: The Death of Princes)
- Nasat
- Nasgul
- Nason Barta native (TTN novel: Unification)
- Native
- Nauian
- Nausicaan
- Nax (TOS comic: "A Mirror for Futility")
- Naxeran
- Ne'eletian (TNG novel: To Storm Heaven)
- Neanderthal
- Needran (TOS comic: "Partners?, The Startling Conclusion!")
- Neethian
- Nejamri (TNG novel: Available Light)
- Nelkarite
- Neon's species
- Nestor III Native (TOS comic: "Mister Chekov")
- Neural native (TNG episode: "A Private Little War")
- Hill People (Neural) (TOS novel: Allegiance in Exile)
- Neubi,ia Prime inhabitant (ENT episode: "Two Days and Two Nights")
- Neuvian (TNG novel: The Persistence of Memory)
- Nevisian (TOS novel: Mudd in Your Eye)
- New Parisian
- Neydan (EV comic: "Immortal Wounds")
- Ngultor
- Niatoko
- Nibiran (TOS movie: Into Darkness)
- Nidrusi (TOS novel: Cast No Shadow)
- Nierl
- Niicali
- Nikariki (TOS novel: Exodus)
- Nilaran (TOS comic: "A Wolf in Cheap Clothing, Part IV")
- Niobean
- Nisaaren (TOS novel: Starfleet: Year One)
- Nizak
- Nizhrak (STA novel: Oblivion)
- Nizhrak'a (STA novel: Enigma)
- Njuran
- Nobian (TOS comic: "Gateway to the Future")
- Noh Angel (TNG novel: Losing the Peace)
- Noophian (TNG episode: "Brothers")
- Nova XIII native
- Nova Roman
- Norellus inhabitant (ENT episode: "Rajiin")
- Noriga native
- Norikan (TNG novel: Exiles)
- Normedian (TOS comic: "The Haunting of Thallus!")
- Norolob
- Norusian
- Nosgoh TNG novel: Greater Than the Sum)
- Not Eden native
- Noulleroi
- Novan
- Noxoran
- Nozda (TOS comic: "Star Trek Video Communicator")
- N'shaii
- Nrakan
- Nuaran (TNG novel: Power Hungry)
- Nukolee native (TOS comic: "A World Gone Mad")
- Nuofon
- Nurstim (TOS novel: Starfleet: Year One)
- Nuvian (ENT episode: "Rajiin")
- Nuyyad (TNG novel: The Valiant)
- N'virii
- Nyberrite
- Nykkus (TOS novel: War Dragons)
- Nyrian (TNG novel: Doors Into Chaos)
O
- Oani
- Ober (VOY novel: Quarantine)
- Oblik III Native (TOS comic: "Dinosaur Planet")
- Obsidian native
- Ocallian
- Ochati (TOS novel: Vulcan's Heart)
- Octoan
- Octran (ENT episode: "The Forge")
- Odib
- Oghen TTN novel: The Red King)
- Oguran
- Okaaraan (TOS comic: "Stranger Worlds, Issue 2")
- Okeanos native (TOS comic: "From the Depths")
- Oktonian (TNG novel: Power Hungry)
- Old Gods
- Old Ones
- Old Scowly's species (TNG novel: The First Virtue)
- Olexan
- Ologomwi (STA novel: Oblivion)
- Oltonion
- Omani
- Omearan
- Omegan (TOS comic: "The Enterprise Mutiny")
- Omega Cygni natives (TAS episode: "Mudd's Passion")
- Omega IV native (TOS episode: "The Omega Glory")
- Ominnusian (TOS comic: "Child's Play (comic)")
- Omnimind's creations (TOS comic: "Restructuring Is Futile")
- Omnimind Android (TOS comic: "Restructuring Is Futile")
- Omnimind Robot (TOS comic: "Restructuring Is Futile")
- Om'raii (TNG novel: Doomsday World)
- O-Mor
- Onctiliian
- Ondu'u
- One Hundred (TOS comic: "The Ends of Eternity")
- Only
- Onstling
- Ontallian
- Oolan (TNG episode: "Manhunt")
- Oomlifu [citation needed]
- Oord (TNG novel: The Captain's Table No.2)
- Oordon native
- Oppalassa (TNG novel: The Best and the Brightest)
- Opsarra (TNG novel: Mystery of the Missing Crew)
- Ora'al (TNG novel: A Call to Darkness)
- Oracoan
- Orakisan (TNG novel: To Storm Heaven)
- Orandi (TOS novel: The Covenant of the Crown)
- Org (TOS comic: "The Expansionist Syndrome")
- Organian
- Orianian (TNG novel: Nightshade)
- Oriki (TOS novel: Vulcan's Heart)
- Orion Races
- Orishan
- Oritixx
- Orma (TNG novel: Boogeymen)
- Ornaet (TOS novel: Doctor's Orders)
- Ornaran (TNG episode: "Symbiosis")
- Orthoo (TOS comic: "Furlough to Fury")
- Orynchid
- Osaarian (ENT episode: "Chosen Realm")
- Osina
- Osnullus (DIS episode: "The Butcher's Knife Cares Not for the Lamb's Cry")
- Otevrel
- Othan
- Ovanim
- Ovirian
- Oxalian (TOS novel: Web of the Romulans)
- Oyolu (TOS novel: Foul Deeds Will Rise)
- Ozalorian (TOS novel: A Contest of Principles)
P
- Pa'a (TNG novel: The Best and the Brightest)
- Pa'uyk
- Pacari (TOS comic: "Reunion, Part 1")
- Pacifican
- Paclu
- Pa'haquel
- Pahkwa-thanh
- Pah-wraith
- Pahwan (DIS episode: "Si Vis Pacem, Para Bellum")
- Pai
- Pakled
- Pak'shree
- P'alblaakis
- Palamarian (DS9 episode: "Business as Usual")
- Palgrenai
- Palisan
- Palkeo est (TOS novel: Dreadnought!)
- Palmian
- Palnak's species (TOS comic: "The Ageless One")
- Palvalion V native [citation needed]
- Palvarlion IV native (TOS comic: "Scalpel")
- Pamanian (TNG novel: Worf`s First Adventure)
- Pandrilite
- Pandronian
- Paraagan
- Paradan
- Paradise Planet Inhabitant (TOS comic: "Dark Traveler")
- Parath'aa (TOS novel: The Disinherited)
- Pardshay's species (DS9 episode: "Family Business")
- Pargite
- Paridesian (TOS comic: "Silent Cries")
- Parnasi (VOY novel: Enemy of My Enemy)
- Parraca
- Pathfinders
- Patonite
- Patrian (TOS novel: The Patrian Transgression)
- Pavakian (TOS novel: Foul Deeds Will Rise)
- Pa'uyk
- Paxan (TNG episode: "Clues")
- Payav
- Pazinian (TNG novel: Double or Nothing)
- Peacekeepers (TNG novel: The Peacekeepers)
- Peben
- Pebru
- Pedrian (TNG novel: Rogue Saucer)
- Pegenoi
- Peladian (TNG novel: Infection)
- Peladon
- Pelapusian
- Peliar
- Alphan (Peliar Zel)
- Betan (Peliar Zel)
- Pelidossian (TOS novel: Starfleet: Year One)
- Peljenite
- Pellean (TNG novel: The Genesis Wave, Book 1)
- Pelosian
- Pelopan (Seekers novel: All That's Left)
- Penemu
- Pentamian
- Pentaran ([[1]])
- Penzatti (TNG novel: Vendetta)
- The People
- Pergue
- Perithees
- Persean
- Pescalian
- Petarian
- Petraw
- Pevuni
- Pfau
- Phaedan
- Phaetonian (TOS comic: "Eclipse of Reason")
- Phantasian
- Phantom people (TNG novel: Triangle: Imzadi II
- Pheben
- Phebracian (STA novel: Oblivion)
- Phrenalian (TNG novel: The Captain's Table No.2)
- Phygman (TOS comic: "The Menace of the Mechanitrons")
- Phylon (TOS novel: Distress Call!)
- Phylosian
- Pilkoran (TOS comic: "Truth or Treachery")
- Pinnaari
- Planet 656 Native (TOS comic: "Ground Zero (comic)")
- Plant species (K-G)
- Platonian (TOS episode: "Plato's Stepchildren")
- platycaud (TNG novel: The Buried Age)
- Plektak (TNG novel: Behind Enemy Lines)
- Plixean (TOS comic: "To Rule the Universe")
- Pluulan (TOS comic: "What Pain It Is to Drown")
- Pochai
- Pojjan (TNG novel: Red Sector)
- Pollarian
- Polyphemian (TNG novel: The Buried Age)
- Pomet's species (TNG episode: "Starship Mine")
- Pon Darra's species (LD episode: "Second Contact")
- Porriman (ENT novel: Kobayashi Maru)
- Prah Mantoos' species (ENT episode: "Cold Front")
- Prantarian
- Prastorian (TOS novel: Mudd in Your Eye)
- Praxx (TNG novel: Infection)
- Preenos inhabitant (ENT episode: "Oasis")
- Preserver (race)
- Priamite
- Priatian
- Prime (LD episode: "Veritas")
- Prinda (TOS novel: Wagon Train to the Stars)
- Promellian
- Pronhoulite (TOS video game: Starfleet Command Volume II: Empires at War)
- Prophet
- Proto-Vulcan (Decipher RPG module: Worlds)
- Providers
- Proxcinian
- Proxima Centaurian (TOS comic: "Year Five, Issue 16")
- Pselliad
- Psyll
- Ptaen (TOS novel: Elusive Salvation)
- Pycan
- Pygorian
- Pythron (DS9 episode: "Rivals")
Q
- Q'al [citation needed]
- Q'Naabian (TOS video game: Starfleet Command Volume II: Empires at War)
- Qualorian
- Quatrini (TOS comic: "Veritas (comic)")
- Qubbezu (TOS novel: No Time Like the Past)
- Quefian (TOS novel: No Time Like the Past)
- Querat
- Quist
- Quodarian
- Quantum Singularity lifeform
- Quutellian
- Qomar
R
- Raask (species) (TOS novel: War Dragons)
- Radun (TOS novel: Mindshadow)
- Rahm (TNG novel: The Best and the Brightest)
- Rain God (TOS comic: "Acceptable Risk")
- Rajathan
- R'akan
- Rakelli
- Ramatin (TNG episode: "Loud As A Whisper")
- Ramatis native
- Ramazian (TOS novel: Blaise of Glory)
- Randrisian (TNG novel: Doomsday World)
- Rannican (TOS novel: Deep Domain)
- Raqilan (TNG novel: Available Light)
- Rasiinian (DS9 episode: "The Muse")
- Rassua (TOS novel: Challenger)
- Rat alien (LD episode: "Crisis Point")
- Ratarran
- Ravager
- Raven
- Ravis' species (ENT episode: "Two Days and Two Nights")
- Rechansa
- Redeemer
- Redheri
- Redjac's species (TOS episode: "Wolf in the Fold")
- Reegrunion (DS9 episode: "Sanctuary")
- Regulan Races
- Rejarran (TOS novel: One Constant Star)
- Relius IV native (TOS comic: "The Peacekeeper, Part Two: The Conclusion")
- Rell's species
- Remalla (TOS novel: Allegiance in Exile)
- Reman
- Reman extremophile (TOS novel: Epiphany)
- Rembegil (TOS novel: Crossroad)
- Remmil VI native (DS9 episode: "Heart of Stone")
- Renns'alan (TOS novel: Enterprise)
- Renao
- Reon-Ka (TOS novels: , The Higher Frontier)
- Repoki
- Resaurian
- Resplerian
- Ressikan (TTN novel: Lost Souls)
- Retellian (ENT episode: "Borderland")
- Reticulan
- Retizian
- Revot (TOS novel: One Constant Star)
- Rex (TNG novel: The Best and the Brightest)
- Rhaandarite
- Rhaaxan
- Rhadamanthan (TNG novel: Doomsday World)
- Rhaessian
- Rhitorri
- Rianconi
- Ridorian
- Rifas-L inhabitant (TOS comic: "The Perfect Dream")
- Rigelian species:
- Chelon
- Hill People (Rigel IV) (TOS episode: "Wolf in the Fold")
- Jelna
- Masters (Rigellian)
- Rigellian (furred)
- Rigellian (humanoid)
- Rimbonan (TNG novel: The Captain's Table No.2)
- Riquatru (TNG novel: Crossfire)
- Risian
- Riska's species (DS9 episode: "Life Support")
- Rithrim (TOS novel: The Disinherited)
- Ri'tis native
- Rodulan
- Rolisan
- Romulan
- Rotalar
- Rotellian
- Rovillian
- Roylan
- R'Riss native
- RRissith
- Ruddy Orion
- Rudimonian
- Ruah IV proto-hominid (TOS novel: The Chase)
- Ruji (DS9 episode: "A Man Alone")
- Rutian (TNG episode: "The High Ground")
- Ryjhahx (TOS novel: Time for Yesterday)
- Ryn
- Rynosh
- Rythrian
S
- S'ti'ach
- Sabratic (TNG novel: Sins of Commission)
- Sadalsuudian (TNG novel: Gulliver's Fugitives)
- Sadrao (TOS novel: The Wounded Sky)
- Sagittarian (TNG novel: Red Sector)
- Sahndaran (TNG novel: The Buried Age)
- Sahntiek (TOS novel: Crisis of Consciousness)
- Sakura Prime inhabitant (VOY episode: "Dreadnought")
- Samdian (TNG novel: Metamorphosis)
- Samnatti
- Samurian
- Sandala
- Sandar (TOS comic: "Once a Hero!")
- Sandpinian
- Sangdor (TOS comic: "Send in the Clones")
- Sanoora
- Sarda's species (DS9 episode: "Captive Pursuit")
- Saren
- Sargonian
- Sarimun
- Sarkassian
- Saronan
- Sarpeid (TOS novel: No Time Like the Past)
- Sarpeidan (TNG novel: Dyson Sphere)
- Sarpeidon Native (TOS novel: Allegiance in Exile)
- Sarsith (TOS comic: "Restructuring Is Futile")
- Sarthongian (TNG episode: "Captain's Holiday")
- Satarran (TOS episode: "The Chase")
- Satler's species (TNG episode: "Starship Mine")
- Sattar
- Sauch (TNG comic: "Ill Wind")
- Saurian
- Narpran
- Scalosian
- Scarnaflan (TOS episode: "The Vulcan Treasure")
- Scathos (VOY episode: "Elogium (episode)")
- Schedart (TNG comic: "Ill Wind")
- Scintilla
- Scoridian
- Scyggian [citation needed]
- Scythian
- Sector 875 species (TOS comic: "Time Out of Joint")
- Selay
- Selelrin [citation needed]
- Selelvian
- Selenean
- Selkie
- Selkye native
- Selkye toad
- Selm
- Selsseress (TOS novel: A Singular Destiny)
- Sendu IV native (LD episode: "Cupid's Errant Arrow")
- Senite
- Sentient tree
- Sentry
- Senuta
- Settler
- Sezanian
- Shaddan
- Shadrasi
- Shahana humanoid
- Shahna's species (TOS episode: "The Gamesters of Triskelion")
- Shaidanian (TNG novel: The First Virtue)
- Sha'Kurian
- Shalra
- Shamial
- Shandreeki
- Shamin (Star Trek: The Motion Picture (adaptation))
- Shani
- Shaper
- Shardak (TNG comic: "Honor Bound!")
- Shayal'brun (TOS novel: Starfleet: Year One)
- Shean
- Shechenag (TOS novel: Past Prologue)
- Shedai
- Shelby's number one's species (LD episode: "An Embarrassment Of Dooplers")
- Sheliak
- Shenchorig
- Shepherd
- Shera'sha-sha (TNG novel: The First Virtue)
- Shesshran
- Shgin
- Shi'e Clan (TOS comic: "The Savage Within")
- Shikedan
- Shirn
- Shisali
- Shizadam
- Shmoaun-ag
- Shour
- Shriiton (TNG novel: Planet X)
- Shubbite
- Shuper
- Siblite
- Sicila TNG novel: I, Q)
- Sidrac (TNG novel: Available Light)
- Siggi's species (LD novel: Kayshon, His Eyes Open)
- Sigma Draconis III inhabitant (TOS episode: "Spock's Brain")
- Sigma Draconis IV native (TOS episode: "Spock's Brain")
- Sigma Draconis VI native (TOS episode: "Spock's Brain")
- Eymorg (TOS episode: "Spock's Brain")
- Morg (TOS episode: "Spock's Brain")
- Sigma fishman
- Signaran
- Siladian
- Silgov
- Sillerac (STA novel: Oblivion)
- Silver Blood
- Silwaan
- Simaks
- Sindareen
- Sinnravian
- Sinoan (TOS novel: One Small Step)
- Sirian (TNG novel: Spartacus)
- Sirila [citation needed]
- Sirius IX inhabitant ([[e|TAS|Mudd's Passion}}
- Sirsu III native
- Sivaoan
- Skagaran
- Skellig
- Sklurrian (TOS comic: "Shell Game (comic)")
- Skorr
- Skov's species (TOS comic: "The Rebound Effect")
- Skriiti
- Skurian
- sky spirit
- Slao-vecki
- Slaver (TAS episode: "The Slaver Weapon")
- Sleak
- Sli TNG novel: Sins of Commission)
- Sluarilian
- Sogstalabian (TTN novel: Lost Souls)
- Sok'an
- Solanae
- Solari
- Solem
- Son'a
- Soong-type android
- Sordinian
- Sorvalo
- Sozlok's species
- Space being (TOS comic: "This Tree Bears Bitter Fruit")
- Sparky's species
- Spartacan
- Species 038
- Species 4673 (TOS novel: No Time Like the Past)
- Species 9591 (TOS novel: No Time Like the Past)
- Spectre (TOS novels: , The Higher Frontier)
- Spinner (TTN novel: Orion's Hounds)
- Sponauglan (TOS comic: "A Little Adventure...")
- Squale
- Sreela
- Sris'si
- Ssana (TOS novel: Shadows on the Sun)
- S'Sleen native
- S'Sliss native
- Starbase 25 alien bartender's species (LD episode: "An Embarrassment Of Dooplers")
- Star-jelly
- Starman (TOS novel: The Starless World)
- Starpeeler (TTN novel: Orion's Hounds)
- S'ti'ach
- Stoyak
- Stralebian
- Stranger (TOS novel: The Starless World)
- Strata
- Stratosian (TOS novel: The Starless World)
- Stroptophan
- Stroyerian
- Stugg (TNG novel: Crossover)
- Sturr TTN novel: The Red King)
- Styran (TOS comic: "The Hijacked Planet")
- Styrisian
- Styxxian (TOS novel: No Time Like the Past)
- Sub-Dimensional (TOS comic: "An Unexpected Yesterday")
- S'uora's Species (TOS comic: "The Hollow Man")
- Subytt
- Sugg
- Sulamid
- Suliban
- Sullurh
- Suriap (TOS novel: Ghost-Walker)
- Susurru (TOS novel: From the Depths)
- Syclarian
- Syhaari (TOS novel: The Latter Fire)
- Syl's species (TOS movie: Beyond)
- Syrath
- Szegedy
T
- T'chakat (TNG novel: Mystery of the Missing Crew)
- T'hiradan (TNG novel: Resistance)
- Ta'alaat
- Taaf (TOS novel: No Time Like the Past)
- Tabukan (TOS comic: "Collision Course (TOS comic)")
- Tactisian
- Tagran
- Taguan (TNG novel: Q-Space)
- Tailen Kahn's species (TOS comic: "The Final Truth")
- Takaran
- Takret
- Talaran (ST novel: Klingon)
- Talarian
- Talavian
- Taldem
- Talemstra native (TNG novel: Unification)
- Talgart (TOS novel: The Last Roundup)
- Talich
- Talin (race)
- Talish
- Tallonian (DS9 episode: "Hippocratic Oath")
- Talokian (TOS comic: "Star Trek—Legion of Super-Heroes, Issue 4")
- Talorian
- Talosian
- Tal'vrekswee [citation needed]
- Tamandar [citation needed]
- Tamarian
- Tamoon's species (TOS episode: "The Gamesters of Triskelion")
- Tandakkari
- Tandaran
- Tandenborstel native (TOS novel: Death's Angel)
- Tan'gredi (TNG novel: Double or Nothing)
- Tangonese (STA novel: Deceptions)
- Tanian
- Tantamon IV native (TNG novel: Boogeymen)
- Tanugan (TNG episode: "A Matter of Perspective")
- Tarahongian
- Taranko
- Tarchannen III species (TNG episode: "Identity Crisis")
- Tarellian (TNG episode: "Haven")
- Tariik (TOS novel: Exodus)
- Tarkalean
- Tarkanian (TNG episode: "The Drumhead")
- Tarkannan (VOY episode: "Innocence")
- Tarl
- Tarlac
- Tarmelite
- Tarn
- Taroscan
- Tarquinian
- Tarquin's species (ENT episode: "Exile")
- Tarsean (TOS comic: "Error")
- Tarsian (ST - Strange New Worlds 9 short story: "Orphans")
- Tarsusian
- Tarulian
- Tasorian
- Ta'ithan (TTN novel: Fallen Gods)
- Ta'Troshan
- Tau Ceti inhabitant (DIS episode: "An Obol for Charon")
- Taubat
- Taurean anthropoid
- Taurhai
- Tauteean (TOS novel: The Rings of Tautee)
- Tavnian
- Taxor (LD episode: "Envoys")
- Taygetian (TOS novel: The Tears of the Singers)
- Teela (TOS episode: "The Vulcan Treasure")
- Teenaxi (TOS movie: Beyond)
- Tegi (VOY novel: Quarantine)
- Tegmenir
- Tekkorian
- Tektonian (TOS comic: "The Perithees Alliance")
- Telamonite
- Tellaite
- Tellarite
- Tellati
- Telspong
- Teluvian
- Temazi
- Temmorian
- Tenaran
- Tendaran
- Tenebian
- Tengku-mal (TOS comic: "The Fear")
- Teniran
- Tenkaran
- Tennekian (TOS novel: Captain to Captain)
- Terabian
- Terellian
- Terid
- Terixan
- Terralyn
- Terrelian (VOY episode: "Gravity")
- Terrellian (ENT episode: "Future Tense")
- Tesnian
- Tessegri
- Tessenite
- Tessic's species (ENT episode: "Marauders")
- Tessik Prime inhabitant (ENT episode: "Dead Stop")
- Tessma
- Tetracite (TOS novel: Double, Double)
- Tezwan
- T'Gni [citation needed]
- Thal
- Thallasinite
- Thallian (TOS comic: "The Haunting of Thallus")
- Thallonian
- Thalos VII inhabitant (TNG episode: "The Dauphin")
- Thanetian (TNG novel: Do Comets Dream?)
- Tharkian (TOS comic: "Spheres of War")
- Thasian
- Thaxian
- Theela's species (TAS episode: "The Lorelei Signal")
- Thelasian
- Theleman
- Thelemite
- Thelkan
- Thelurian (TNG novel: The Captain's Table No.2)
- Theluvian
- Themerian
- Thermian (TOS novel: Unspoken Truth)
- Theskian
- Theta Cygnian
- Thevosian (TOS comic: "The Peacekeeper, Part Two: The Conclusion")
- Thew [citation needed]
- Thialtan (TNG novel: Doomsday World)
- Thiopan (TNG novel: Power Hungry)
- Thlixian
- Tholian
- Thorian (TOS comic: "The Nogura Regatta")
- Thracian
- Threllian
- Thriidian (TNG novel: The Captain's Table No.2)
- Thubanir (TNG comic: "Ill Wind")
- Thymerae
- Tiburon
- Tigan
- Tigrex (TOS novel: Death's Angel)
- Tikraat (TNG novel: The First Virtue)
- Tilonian (TNG episode: "Frame of Mind")
- Tirek VIII native
- Tiron's species (DS9 episode: "Meridian")
- Tirrion
- Tishiki (TOS novel: Ex Machina)
- Titanian (TOS comic: "Star Trek—Legion of Super-Heroes, Issue 4")
- Tizarin
- T'kon (TTN novel: Fortune of War)
- Tkon
- T'Lani (DS9 episode: "Profit and Loss")
- T'lli Betan (TNG episode: "The Loss")
- Togota
- Tojufu
- Tol
- Tolen
- Toltan
- Tomariian
- Tomol
- Tondusian
- Tonkian
- Toorjaani
- Toraak (TNG novel: The Buried Age)
- Torga (TOS novel: Devil World)
- Torian
- Torkezzi (TNG novel: Ancient Blood)
- Torothan
- Torrekmat (TNG novel: Available Light)
- Tracon (TOS novel: One Constant Star)
- Trafalmadorian
- Traff's species (TOS comic: "The Rebound Effect")
- Trakeskian (TOS novel: The IDIC Epidemic)
- Tralmanii (TOS comic: "All Those Years Ago...")
- Tramora (TOS episode: "The Vulcan Treasure")
- Trann native
- The Traveler's species (TOS comic: "The Traveler (comic)")
- Trehanna
- Trelorian (TOS novel: Captain's Peril)
- Trempolian
- Tret's species (ENT episode: "Extinction")
- Trevan
- Trexatian
- Trexian (TNG novel: The Autobiography of Jean-Luc Picard)
- Tria's species (VOY episode: "Someone to Watch Over Me")
- Triacus marauder (TOS episode: "And the Children Shall Lead")
- Triangularis native
- Triannon (ENT episode: "Chosen Realm")
- Triclopian (TOS novel: Assignment: Eternity)
- Tricon TNG novel: Sins of Commission)
- Triexian
- Trilg (TNG novel: Boogeymen)
- Trill
- Augmented Trill
- Kurlan
- Trill symbiont
- Trilon [citation needed]
- Trinni/ek
- Trisk (TOS novel: Ishmael)
- Tr'Nee
- Troyian
- Trulgovian
- Trune
- Truxtun IX native
- T'sariak
- Tseetsk
- Tseyluri (TOS novel: The Kobayashi Maru)
- Tsoran (TNG novel: Tooth and Claw)
- Tullian
- Turan Tot Narut's people
- Turani
- Turanian
- Turellian
- Turraca
- Twii (TOS comic: "Isolation")
- Tygarian
- Tyrellian
- Tyrakhean (TTN novel: Fortune of War)
- Tyran (species) (TNG episode: "The Quality of Life")
- Tyrheddan (STA novel: Oblivion)
- Tyrion
- Tzenkethi
- T'landra (TOS novel: The Children of Kings)
U
- Ubarrak
- Ucali
- Uk'les
- Ullian
- Ulthairian
- Umbra
- Umiiga
- Unclean
- Underlander
- unDiwahn (TNG novel: The Devil's Heart)
- Unnamed Green Alien Species (TOS comic: "1971/4860.2")
- Unnamed insectoid
- Unoite
- Ur
- Ursinoid Miner's species (TAS episode: "Mudd's Passion")
- Urwyzden
- Usildar (TOS novel: Captain to Captain)
- USS Quito Alien sciences ensign's species (LD episode: "Cupid's Errant Arrow")
- USS Titan bridge officer's species (LD episode: "No Small Parts")
- USS Titan commander's species (LD episode: "No Small Parts")
- U'tani (ENT episode: "Rajiin")
- Uzor
V
- Vaalian (Gamma Argus II native) (TOS episode: "The Apple")
- Vahari
- Valakian
- Valerian
- Valna (TOS episode: "The Vulcan Treasure")
- Valtarii
- Valtese (TNG episode: "The Perfect Mate")
- Valtusian
- Valzhan
- Vandalayan
- Vanlaca (TNG novel: The Buried Age)
- Vanoben
- Vanothli
- Vapulan
- Varadee
- Varahat
- Varillian
- Varkan
- Varkolak
- Vartican (TOS comic: "Spectre of the Zond")
- Vedala
- Vega Proxima native
- Vegan (TOS novel: The Captain's Oath)
- Vehereklin (TOS comic: "Too Many Presidents")
- Vek (DS9 episode: "Business as Usual")
- Vekhal
- Vekor's species (TNG episode: "Gambit, Part I")
- Velara III lifeform
- Velexan (TNG novel: Foreign Foes)
- Veliki
- Velossian (TOS novel: Captain's Blood)
- Veltressai (TOS video game: Starfleet Command Volume II: Empires at War)
- Vemlan
- Vemlarite
- Vanotli
- Vendorian
- Venetan
- Veneu II native (TOS comic: "The Alone, Part Two")
- Ventaxian
- Venturi
- Verillian
- Vernalian (TOS novel: The Antares Maelstrom)
- Verzhik
- Vesbian
- Vesnoyan
- Vestian
- V'gelnian
- Vian
- Viden
- Vilix'pran's species (DS9 episode: "Heart of Stone")
- Vimbreni
- Vindalin (TOS novel: Shell Game)
- Vinithi (TOS novel: The Three-Minute Universe)
- Violacean
- Virinda native
- Vironat
- Virtili
- Vissian
- Vlugtan (DS9 episode: "Rivals")
- Vobilite
- Voixxian
- Vok'sha
- Vokite (TOS novel: A Contest of Principles)
- Volian [citation needed]
- Voliro (TTN novel: Orion's Hounds)
- Volis' species (LD episode: "Second Contact")
- Voloczin
- Vomnin
- Voodooite
- Vorel
- Vormoresh (TNG novel: The Buried Age)
- Vornerian (TOS comic: "Rock and a Hard Place")
- Vornilian (LD episode: "Strange Energies")
- Vorsk (TOS novel: War Dragons)
- V'radian (ENT episode: "Rajiin")
- Vrotii (TOS comic: "The Enemy of My Enemy (New Visions)")
- Vrunon's species (TOS comic: "Spore of the Devil")
- Vulcan
- Freelan (species)
- Fri'slen
- K'tralli
- Romulan
- Thaessa
- Vuldarian (TOS comic: "Stranger Worlds, Issue 1")
- Vultran
- Vurian
- Vykar (TOS novel: Time for Yesterday)
- Vyyoxi
W
- Waasertlan (TOS comic: "A Failure to Communicate")
- Wampus (TOS novel: The Joy Machine)
- Warden
- Watcher
- Wathiki
- Watraii
- Warin
- Wawu (Decipher RPG module: Worlds)
- Waykani (TNG novel: Metamorphosis)
- Wetraza
- Weyrie
- Whetu'irawaru (TTN novel: Fallen Gods)
- Wild Things (TNG novel: A Rock and a Hard Place)
- Willall (TOS novel: The Final Reflection)
- Wisp
- Withiki (TOS novel: The Final Reflection)
- Wlariivian [citation needed]
- Wolf 46-III native
- Wollowan
- Wogneer creature (TNG episode: "Allegiance")
- Wraith (ENT episode: "Rogue Planet")
- Wruum's species
- Wumpar (TOS comic: "The Alone, Part Two")
- Wu'rl
X
- Xahean (ST episode: "Runaway")
- Xanaran
- Xanathian (TOS comic: "Furlough to Fury")
- Xanno
- Xanosian
- Xanthricite (TNG novel: Doomsday World)
- Xantoras (ENT episode: "The Breach")
- Xanvian (TOS comic: "Oban (comic)")
- Xarakan (TOS novel: The Captain's Oath)
- Xarantine
- Xavoth
- Xawe
- Xela (TOS comic: "Assignment: Eternity")
- Xelatian
- Xenexian
- Xenon
- Xepolite
- Xhaldian (TNG novel: Planet X)
- Xhosa
- Xhuj
- Xiicalli (TOS novel: Academy: Collision Course)
- Ximegan
- Xindi-Aquatic
- Xindi-Arboreal
- Xindi-Avian
- Xindi-Insectoid
- Xindi-Primate
- Xindi-Reptilian
- Xirri
- X'Mari
- Xoxian
- Xoxxan (TOS comic: "Oban (comic)")
- Xybaki
- Xyrillian
Y
- Yahk Shimash (TNG novel: Boogeymen)
- Yakaban
- Yang
- Yann
- Yannid VI native
- Yash-El (TNG episode: "The Chase")
- Yattho (VOY episode: "Before and After")
- Yemai
- Yerba
- Yeroff Fuchida's species (DS9 episode: "Prodigal Daughter")
- Yeti (LD episode: "Second Contact")
- Yiltern (TNG novel: Gemworld, Book One of Two)
- Ylan (TTN novel: The Eyes of the Beholders)
- Ylos Native (TOS comic: "Homecoming...")
- Yominan
- Yoon (TOS novel: Crossroad)
- Yosarian
- Yridian
- Yrommian (VOY novel: Day of Honor (novelization))
- Ysalanti (TNG comic: "The Way of the Warrior (comic)")
- Yugai
- Yurnian (TOS novel: The Antares Maelstrom)
- Yusubi (TOS novel: No Time Like the Past)
Z
- Za'Huli (TOS novel: No Time Like the Past)
- Zachra
- Zakdorn
- Zakpro
- Zaldan
- Zalkatian
- Zalkonian
- Zami (TOS novel: The Captain's Oath)
- Zanri (TOS novel: Exiles)
- Zantosian
- Zaranite
- Zargotian
- Zarin (TOS novel: Exiles)
- Zarta native
- Zartani (STA novel: Oblivion)
- Zeator (TOS novel: Chain of Attack)
- Zebrosian (TNG novel: The First Virtue)
- Zebub
- Zellorite (TOS novel: The Antares Maelstrom)
- Zeltok
- Zelworian
- Zendarian TNG novel: I, Q)
- Zenna
- Zennan
- Zentarian (TOS comic: "The Void of Storms")
- Zentrofian
- Zeon
- Zeosian
- Zerebian
- Zerkalan (TNG novel: Infiltrator)
- Zertanian
- Zeta-Atezian (TOS comic: "Heads of State")
- Zeta Reticulan (TOS comic: "We Are Dying, Egypt, Dying!")
- Zetarian
- Zevebian
- Zevian (TNG episode: "His Way")
- Zhoran (TOS comic: "Cura Te Ipsum")
- Zhuik
- Ziakkan
- Zibalian (TNG episode: "The Most Toys")
- Ziminda (TOS comic: "Star Trek Movie Adaptation, Number Two")
- Zintekkan (STA novel: Oblivion)
- Zirgosian (TOS novel: The Three-Minute Universe)
- Zjod's species (ENT episode: "Rajiin")
- Zobral's species (ENT episode: "Desert Crossing")
- Zodian
- Zolan's species (DS9 episode: "Cardassians")
- Zoloch (TNG novel: Doomsday World)
- Z'on's species
- Zond (TOS comic: "Spectre of the Zond")
- Zoumas's species
- Zondarian (NF novel: Fire on High)
- Zontak
- Zora Fel
- Zotropian (TOS novel: Phaser Fight)
- Zuynan
- Zycothian
- Zymnean
- Zynterian
Appendices
External link
- Alpha and Beta Quadrant races and cultures article at Memory Alpha, the wiki for canon Star Trek.