- 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
- Trans-Global Aeronautics Research Corporation
- Trans-Universal Shipping
- Trans-shield anode
- TransSolar
- Transactor
- Transamerica Pyramid
- Transcendent caracal
- Transcendent tribble
- Transcorder implant
- Transdimensional Tactics
- Transfiguration
- Transfigurations
- Transformation sphere
- Transformational Relativity and Continuum Distortion Propulsion
- Transformations
- Transient Registration
- Transinium
- Transistor
- Transit
- Transit-hopper
- Transkinetic vector
- Transmat
- Transmutation beam
- Transparasteel
- Transparent aluminum
- Transpectral sensor array
- Transphasic torpedo
- Transplastic
- Transport
- Transport inhibitor
- Transporter
- Transporter Commercial
- Transporter Improvement Act
- Transporter chief
- Transporter inhibitor field
- Transporter pad
- Transporter psychosis
- Transporter room
- Transreplication
- Transtator
- Transwarp
- Transwarp aperture
- Transwarp beaming
- Transwarp conduit
- Transwarp core
- Tranya
- Trapeze
- Trapped
- Trapped (STO)
- Trapped in Time
- Trapper
- Trapunto
- Trash bin
- Trask
- Trasser
- Travec chim Var
- Travel Pod 5
- Travel pod
- Traveler
- Traveler (disambiguation)
- Traveler (starship)
- Travers
- Travil Asand
- Travis Higgins
- Travis Mayweather
- Travis Mayweather (mirror)
- Travit
- Travois
- Trawley
- Traxadine
- Traxen
- Traxton Compound
- Traya
- Traya Hallitz
- Traya Nall
- Traynor
- Traynor (disambiguation)
- Treachery, Faith and the Great River
- Treadmill
- Treana
- Treason (novel)
- Treasure Trading Station
- Treasure Trading Station (STO)
- Treasures of Inner Mongolia
- Treasury Guard
- Treasury of Erebus
- Treaty's Law
- Treaty and law
- Treaty boundary quadrant
- Treaty of Algeron
- Treaty of Alpha Cygnus IX
- Treaty of Alpha Trianguli
- Treaty of Armens
- Treaty of Axanar
- Treaty of Bajor
- Treaty of Ectair
- Treaty of Kammzdast
- Treaty of Malb
- Treaty of Peace
- Treaty of Regulon
- Treaty of Sirius
- Treaty of Wolf 359
- Trebor
- Tree
- Tree (disambiguation)
- Tree candy
- Tree of Life
- Tree of Life planetoid
- Treen
- Trefayne
- Trefethen
- Trefoil
- Trefolg
- Tregaar
- Tregas
- Tregel
- Trehanna
- Treir
- Treishya
- Trek
- Trek to Madworld
- Trekal Darhe'el
- Trekal Darhe'el (mirror)
- Trekkers
- Treknology
- Trel
- Trel (Breen)
- Trel Daraan
- Trel Varghorne
- Trelane
- Trelane's planet killer
- Trelar
- Trelar's warship
- Trelar (Bajoran)
- Trelar (Cardassian)
- Treleb
- Treleb (planet)
- Treleb system
- Trelian
- Trelka
- Trelka's Lair
- Trelka Station
- Trelka V
- Trelkis
- Trelkis III
- Trell
- Trell (Bolian)
- Trellan crocodile
- Trellisane
- Trellisane-Sealon system
- Trellium
- Trellium mining planet
- Trelos Vren
- Tremayne
- Trempolian
- Tren Renalla
- Trenchoxica
- Trendir
- Trenev Sharn
- Trengur
- Treni cat
- Trenigar
- Trenjan
- Trenka Bron-Ken
- Trenkanshent sh'Lavan
- Trenna
- Trennes