- Tools and technology
- Tools of Tyranny
- Toora Maab
- Toorjaani
- Tooth Fairy
- Tooth and Claw
- Tooth sharpener
- Toothy Maw
- Topaline
- Topek
- Topez Anat
- Topin
- Topsoil
- Toq
- Toq, father of Gorkon
- Toq (House of Lorgh)
- Toqel
- Tor
- Tor'Kaht class
- Tor'aq
- Tor'ash
- Tor'ivara
- Tor'kaat
- Tor'ken
- Tor'ren River
- Tor-ut Koon
- Tor (disambiguation)
- Tor III
- Tor Jacobson
- Tor Jolan
- Tor glasch Hok
- Tora
- Tora Bora
- Tora Naprem
- Tora Naprem (mirror)
- Tora Ziyal
- Tora Ziyal (mirror)
- Toraak
- Torad, son of Keldraq
- Torad V
- Torad sector
- Toradi
- Torak (disambiguation)
- Toral, son of Duras
- Toral (22nd century)
- Toral Merrok
- Toralay
- Toran
- Toran (Gul)
- Toran class
- Toranium
- Toranius
- Torar Olaffok
- Torasia
- Torat system
- Torath (Romulan)
- Torbish
- Torch of G'boj
- Torchbearer
- Torek
- Torek (disambiguation)
- Torek system
- Torenn
- Toreth
- Toreth (Klingon)
- Toreth (Romulan)
- Torethirala zh'Vres
- Torf
- Torg
- Torg, son of Kormog
- Torga
- Torga (disambiguation)
- Torga IV
- Torga system
- Torgelson
- Torghn, son of Kmpok
- Torgot
- Torgu-Va
- Torgu-Va system
- Torgud gagh
- Tori Kane
- Tori nanban
- Torian
- Torias Dax
- Toriatal
- Toric
- Toridex
- Torii Mototada
- Torin
- Torin (Bajoran)
- Torin (Eerlikka)
- Torin (Klingon)
- Torin system
- Torindar Vrek
- Torindar Vrek (23rd century)
- Torindar Vrek (24th century)
- Torinese
- Torius
- Torius (23rd century)
- Torj
- Tork
- Torkan cavefish
- Torkas of the Vehm
- Torken Noth
- Torkezzi
- Torkezzi fuel ship
- Torkor
- Torlanta
- Torlek, son of Ro'vagh
- Torman
- Tormandar
- Tormillius
- Tormillius (23rd century)
- Tormium
- Tormog
- Torna
- Torna IV
- Tornado
- Tornellen Dax
- Tornot
- Torob
- Toron
- Toron System Patrol
- Toron class
- Torona
- Torona IV
- Toronto
- Toronto (freighter)
- Torosaurus
- Toroth Prime
- Toroyan
- Torpedo
- Torpedo launcher
- Torr
- Torr Sector
- Torres (disambiguation)
- Torri Ryerson
- Torrie Aimatsu
- Torrik
- Torrna Antosso
- Torrna Lyyra
- Torros
- Torros III
- Torros Minor
- Torrt
- Torrt VI
- Torse
- Torson
- Torsten Uzzle
- Tortellini
- Tortubial
- Tortuga
- Tortuga I
- Tortuga VI
- Torture
- Tortured elf
- Tortured soul
- Torturer
- Torus
- Torus (city)
- Torus (month)
- Torv
- Torvak
- Torvan Pim
- Torven
- Torvig Bu-Kar-Nguv
- Torviir
- Torvin
- Torvin (Hive)
- Torvis-Urzon
- Tory Castellano
- Torye
- Torzat
- Torze-qua
- Tos
- Tosarian
- Tosarian freighter
- Toscat
- Tosh
- Toshin
- Toshiro Czierniewski
- Tosk
- Toska
- Tossi
- Total Logic
- Total conversion drive
- Totality
- Totality (Andromeda)
- Toth
- Toth (Klingon)
- Totoro
- Totozoid
- Totrostav
- Touched
- Tour de France
- Tour of Duty
- Tourangeau
- Tourangeau (disambiguation)
- Tournel
- Toussaint (disambiguation)
- Tova'dok
- Tova Syed
- Tovak
- Tovak (Commander)
- Tovak (Doctor)
- Tovak (Lieutenant)
- Tovan Khev
- Tovang
- Tovarek
- Tovik
- Tovoj
- Tow-kath
- Toward Freedom
- Toward a Prehistory of the Milky Way
- Tower (disambiguation)
- Tower Control
- Tower Hill
- Tower of Babel
- Tower of Commerce
- Townsaver
- Townsend (disambiguation)
- Tox Uthat
- Tox Uthat (mirror)
- Toxic Slug
- Toyar
- Toyotomi Hideyoshi
- Tozhar Mountains
- Tozhat Memorial
- Tozhat Province
- Tozhat resettlement center
- Toziuz
- Tozox
- Tozox V
- Tozrene
- Tozron
- Tozskene
- Tr'Aet
- Tr'Aimne
- Tr'Hheinia
- Tr'Hmaellieh
- Tr'owiluhfe Mnei'sahe
- Tra'tara
- Tra-lo-klee
- Traal
- Trab'neth
- Trabal
- Trabe
- Trabe (star)
- Traber
- Trabi
- Trabian
- Trablar
- Trabox
- Trabus
- Tracer device
- Tracey Findley (23rd century)
- Tracey Findley (24th century)
- Tracey Keane
- Trach
- Tracheotomy
- Trachus
- Tracian Sea
- Track-and-field
- Track-jumper
- Tractor-web
- Tractor beam
- Tracy (disambiguation)
- Tracy Chan
- Tracy Dane
- Tracy Giacomo
- Tracy Henderson
- Tracy Tormé
- Trade
- Trade Deal
- Trade Hall
- Tradecraft
- Trader's Measure
- Trader's Tongue
- Trader Captains and Merchant Princes
- Trader Captains and Merchant Princes (1st edition)
- Trader Captains and Merchant Princes (2nd edition)
- Trading Tongue
- Traditionalist
- Traditionalist (Aarakian)
- Traelus
- Traelus II
- Trafalmadorian
- Trag'tok
- Tragar
- Trager
- Trager (mirror)
- Trager (shuttlecraft)
- Trager (star)
- Trager III
- Traggle
- Traggle nectar
- Tragon
- Trahn Xian
- Traiaka
- Trail of the Mohicans
- Trailblazer (disambiguation)
- Trailblazer class
- Train
- Training Cruise
- Training Simulation Design Group A13
- Training mission
- Traitor's Claw
- Traitor Winds
- Traité d'Unification
- Trajun
- Trakeskian
- Traket
- Trakia
- Trakian ale
- Trakliv
- Trakor
- Trakor (raider)
- Tral Katra
- Tral Kliban
- Tralk
- Tralva
- Tramzon
- Tran
- Tran'nuc
- Tran (Breen)
- Tran (Ferengi)
- Tran (Human)
- Tran (Romulan)
- Tran Van Ky
- Tran system
- Trancas
- Trance Wine
- Trandagh
- Trang
- Tranh
- Tranh (Ensign)
- Trankel
- Trann
- Trann native
- Tranna
- Tranome Sar
- Tranquility Base
- Tranquility Park
- Tranquility VII
- Trans-Galactic Zoological Federation