- Cory (disambiguation)
- Cory Devlin
- Cory Ewin
- Cory Jinsik
- Cory Rushton
- Cory Wheelock
- Corzanium
- Corzon
- Cosalthan II
- Cosho
- Cosmetic surgery
- Cosmic Entity Welfare Society
- Cosmic storm
- Cosmopolitan
- Cosmos class
- Cosmozoan
- Cossack
- Cossina
- Cossina III
- Cost of Living
- Costa
- Costa Rocosa
- Costa Trabor
- Costara
- Coste Sholl
- Costello
- Costello (Lieutenant)
- Costumes: Five Decades of Fashion from the Final Frontier
- Cotara
- Cote
- Cotor
- Cotrok
- Cotton Club
- Council Lord
- Council Spokesman
- Council of Circles
- Council of Clans
- Council of Elders
- Council of Governors
- Council of Guardians
- Council of Nobles
- Council of Patriarchs
- Council of Physicians
- Council of Trade
- Council of the United Federation of Planets
- Council of the Wise
- Council on Ecological Controls
- Councillor
- Counselor
- Count
- Count Dracula
- Countdown
- Countdown, Number Four
- Countdown, Number One
- Countdown, Number Three
- Countdown, Number Two
- Countdown (episode)
- Countdown (short story)
- Countdown Collection
- Countdown Collection Volume 1
- Countdown Collection Volume 2
- Countdown to Darkness
- Countdown to Darkness, Issue 1
- Countdown to Darkness, Issue 2
- Countdown to Darkness, Issue 3
- Countdown to Darkness, Issue 4
- Counter
- Counter-current distributor
- Counter-insurgency program
- Counter Strike
- Counterpoint
- Counterpoint (STO)
- Counting coup
- Country Captain
- County Cork
- County Kerry
- Coup d'État
- Coup d'état
- Coupler
- Courage class
- Courageous
- Courageous (DE-4)
- Courageous (free starship)
- Courier
- Courier clone
- Courier pilot raider
- Couriers
- Course: Oblivion
- Court
- Court (FF-7)
- Court Martial
- Court martial
- Court of inquiry
- Courtenay Marshall
- Courtenay Marshall's imposter
- Couscous
- Cousteau
- Cousteau (I)
- Cousteau (II)
- Cousteau (shuttlepod)
- Cousteau Institute
- Covaleski
- Covdival
- Coven
- Covenant
- Coventry
- Covington
- Cow Hollow
- Cowboy
- Cowboy Horse
- Cowboy Ralph
- Cowboy diplomacy
- Coyote
- Coyote (Rampartian)
- Coyote (myth)
- Crab Nebula
- Crack in the Mirror
- Cradle
- Cradle of Persuasion
- Craeul class
- Cragon V
- Craig (disambiguation)
- Craig D. B. Patton
- Craig Engler
- Craig Frey
- Craig Gibb
- Craig Harris
- Craig Kirk
- Craig Mitchell
- Craig Weiss Raymond
- Crain
- Crain's disease
- Cramps
- Cranachan
- Crandall
- Crandall (disambiguation)
- Crane
- Crane (Doctor)
- Crane (Lieutenant)
- Crane (machine)
- Cranial implant
- Cranio-necrotizer
- Crannac Oghila
- Craps
- Crassenia
- Crat'r Bay
- Crater
- Crater constellation
- Crateris colony
- Cravens
- Cravic
- Cravic homeworld
- Cravic system
- Crawlabout
- Crawler
- Craxithesus
- Cray
- Craycroft
- Crayfish
- Craynid
- Crea
- Cream cheese
- Cream of asparagus soup
- Creative Couplings
- Creative Couplings (compilation)
- Creator of All Things
- Creators
- Creators (Cetacean Probe)
- Creators (Fabrini)
- Creatures
- Creccus
- Credenhill
- Credit
- Creeg
- Creeping Death
- Cregger Lor Mowlanish Dor Crixa Tel
- Crell
- Crell Moset
- Crell Moset (mirror)
- Crellis Cluster
- Crelmac
- Crelok
- Cremation
- Cremindas
- Cren Veruda
- Crenal
- Crenfel
- Crenq
- Crenshaw
- Crenshaw (disambiguation)
- Creole shrimp
- Crescent Courtyard
- Crescent Valley Retreat
- Crescent and Trefoil Developments
- Crescenzo Notarile
- Crespo
- Cretia
- Crew
- Crew (comic)
- Crewman
- Creyn
- Cricket
- Crimar
- Crime and punishment
- Criminal activity report
- Crimmon
- Crimson Guard
- Criniti
- Crinox
- Crisis Point
- Crisis Point 2: Paradoxus
- Crisis of Consciousness
- Crisis on Centaurus
- Crisis on Vulcan
- Crisp
- Cristofur Thorpe
- Cristóbal Rios
- Critical Care
- Critter
- Critter starship
- Croatia
- Crockett
- Crocodile
- Crocohippus
- Croden
- Croll
- Crom Neret
- Cromarty
- Cromia
- Cromidia
- Cromwell
- Cronal Gys
- Cronari
- Croquet
- Crosby Nebula
- Cross Cult
- Crossbow
- Crossfield (disambiguation)
- Crossfield class
- Crossfield class (32nd century)
- Crossfire (STO)
- Crossfire (comic)
- Crossfire (disambiguation)
- Crossfire (episode)
- Crossfire (novel)
- Crossover
- Crossover (disambiguation)
- Crossover (episode)
- Crossover (novel)
- Crossover bridge
- Crossovers with other properties
- Crossroad
- Crossroad Blues
- Crossroads
- Crossroads at Crateris
- Crossroads of Time
- Croth
- Croupier
- Crovala 173
- Crown
- Crown System Patrol
- Crown of the First Mother
- Crown prince
- Croy
- Crucial III
- Crucible
- Crucifixion
- Cruiser
- Cruller
- Crullus Prime
- Crunch-blossom
- Crusader class
- Crusades
- Crushed Bothan brain fluid
- Crusher
- Crusher 54
- Crutch
- Crux
- Crux constellation
- Cruz (disambiguation)
- Crxon
- Cry Havoc
- Cry Vengeance
- Cry Vengeance (TNG comic)
- Cry Vengeance (TOS comic)
- Cryan
- Cryblon
- Crying Plant
- Cryodagger
- Cryogenic vault
- Cryogenics
- Cryptic Studios
- Crystal
- Crystal Gbowee
- Crystal Hahn
- Crystal ball
- Crystal flower
- Crystal steel
- Crystal tingler
- Crystal tree
- Crystalline Catastrophe
- Crystalline Entity
- Crystalline Trench
- Crystilia
- Crytokts
- Crème brûlée
- Csillag brandy
- Csylium
- Ctharrl
- Cthia
- Cu'lan T'ullhy
- Cuba
- Cuban Missile Crisis
- Cube
- Cube 1184
- Cube 19721
- Cube 384
- Cube 45208
- Cube 461
- Cube 630
- Cube 632
- Cuckoo clock
- Cucula
- Cudgel
- Cuellar
- Cuellar IV
- Cuh Thug Ah
- Cuirassier class
- Cuirle
- Cul
- Culat
- Culbreath
- Culhane
- Culinary Institute of the Delta Quadrant
- Culla
- Culloden
- Culluh
- Culpidus
- Culprit
- Cult
- Cult (group)
- Cult of Kahless
- Cult of the Pah-wraiths
- Cultuic
- Culture Clash