- T ... T’u-lu-f’an P’en-ti
- T’u-men Chiang ... Ta-li cranium
- Ta-lien ... table tennis
- Tableau comparatif ... Tachyeres
- Tachyeres brachypterus ... Taenia saginata
- Taenia solium ... Tahāfut al-falāsifah
- tahajjud ... tail of a comet
- tail pulse ... Taiwan, history of
- Taiwudi ... Takayanagi 7×7 structure
- Takayasu’s disease ... tala
- Talā-ye sorkh ... Tales of Hulan River
- Tales of Ise ... Tall Story
- Tall T, The ... Tama languages
- Tämä matka ... Tamburini, Francisco
- Tamburlaine ... tan
- tan ... Tandil
- Tandja, Mamadou ... Tangut
- Tangut ... Tanomura Kōken
- Tañon Strait ... Tapajó
- Tapajós ... Tár
- Tar ... Tarbes
- tarboosh ... Tarkhundaradu
- tarkīb-band ... tartar, cream of
- tartaric acid ... Tasman Peninsula
- Tasman Sea ... Tatar Strait
- Tatara Bridge ... Tau Sug
- Tau Zero ... Tavgi Samoyed
- Tavgy language ... Taxodium
- Taxodium ascendens ... Taylor, Lawrence
- Taylor, Lawrence Julius ... TBBPA
- Tbilisi ... tea mangrove
- tea olive ... Tebboune, Abdelmadjid
- Tébessa ... Teddy Bears, the
- Tee Ball ... Teisheba
- Teishebaini ... Telegram
- Telegram Messenger ... Television in the United States
- Television Information Office ... Telugu Desam Party
- Telugu language ... Tempest, The
- Tempest, The ... Temptation of St. Anthony
- Temptation of St. Anthony, The ... Tendai Shintō
- Tende, Col de ... Tennessee Hills
- Tennessee River ... tentacled tube worm
- tentaculum ... Terapontidae
- Terathopius ecaudatus ... Terman, Lewis
- Terman, Lewis M. ... terpineol
- terpinolene ... terrigenous facies
- terrigenous sediment ... Teshio, Mount
- Teshio-dake ... testimonio
- Testimony ... tetrahedrite
- tetrahedron ... Teutoni
- Teutonia ... Texasville
- Texcoco ... Thai boxing
- Thai language ... Thamyras
- Thamyris ... That Which I Should Have Done I Did Not Do (The Door)
- That’ll Be the Day ... The Founding Fathers and Slavery
- The Founding Fathers, Deism, and Christianity ... Theaetetōs
- Theaetetus ... theistic evolution
- Theistic Idealism ... Theodora
- Theodora Goes Wild ... theopaschitism
- Theophanes Continuatus ... theory, scientific
- Theosophical Society ... thermal cracking
- thermal detector ... thermonatrite
- thermonuclear bomb ... theta oscillation
- theta wave ... thicket
- thickhead ... things-in-themselves
- Things: A Story of the Sixties ... Third Republic
- Third Republic ... This England
- This Girl ... Thomas Cup
- Thomas J. Watson Fellowship ... Thomas, Robert
- Thomas, Ronald Stuart ... Thompson, Tiny
- Thompson, Tommy ... thoracolumbar nervous system
- thoracolumbar outflow ... thorny locust
- Thornycroft, Sir Hamo ... Thracian language
- Thraco-Illyrian language ... Three Great Principles
- Three Guarantees, Army of the ... Three Women Around the Table
- Three Women in Church ... Thrinaxodon
- Thring, Edward ... Thryonomys swinderianus
- Thu Dau Mot ... Thupa ’Inka Yupanki
- Thupa Wallpa ... Thyolo
- Thyone ... Tianjin, Treaties of
- tianli ... Tichatschek, Joseph
- Tichodroma muraria ... Tientsin
- Tientsin Massacre ... Tighenif
- Tighina ... Til Barsip
- Til Sankranti ... Tillmans, Wolfgang
- tilloid ... Time Is Tight
- time limit ... Timfristós, Mount
- Timgad ... Tinariwen
- Tinbergen, Jan ... Tiny Desk
- Tiny Furniture ... Tirpitz, Alfred von
- Tirra Lirra ... Titan
- Titan ... Titus Aurelius Fulvius Boionius Arrius Antoninus
- Titus Flavius Clemens ... TMD
- Tmesipteris ... To the Last City
- To the Lighthouse ... Tochari
- Tocharian A ... toga virilis
- tōgaku ... Tokayev, Kasymzhomart
- Toke ... Tokyo University of Fine Arts and Music
- Tokyo University of the Arts ... Tolman, Susan Lincoln
- Tolmeita ... tomb
- Tomb of Philip the Bold ... Tomorrow Man, The
- Tomorrow Never Dies ... Tongnip Hyŏphoe
- tongp’yŏnje ... Tony Rome
- Tonya ... Topa Huallpa
- Topa Inca Yupanqui ... Tora no o fumu otokotachi
- Tora, Tora, Tora! ... Tornio
- Torniojoki ... Torres Strait Islands
- Torres Vedras, lines of ... Torvill and Dean
- Torvill, Jayne ... totem mask
- totem pole ... Touman
- Toun Shisetsu ... Tovey, Sir Donald Francis
- tovil dance ... township council
- Township Fever ... Tozzer, Alfred M
- Tozzer, Alfred Marston ... tracking
- tracking ... Trader Horn
- trader nomad ... tragic flaw
- Tragic History of the Sea, The ... Traité de mécanique céleste
- Traité de perspective ... trans-butenedioic acid
- Trans-Canada Air Lines ... transfer cell
- transfer factor ... transit amplifying cell
- transit bus ... Transparency International
- Transparent ... transversospinalis muscle
- transvestism ... trauma surgery
- traumatic amnesia ... Travels with My Aunt
- Traven, B. ... Treatise of the Northwest Passage to the South Sea, Through the Continent of Virginia and by Fretum Hudson, A
- Treatise on Algebra ... tree duck
- tree fern ... Tremarctos
- Tremarctos ornatus ... Treponema pallidum pallidum
- Treponema pallidum particle agglutination assay ... Triacanthidae
- Triacanthodidae ... Tribes of Galway
- Tribhuvan ... Trichodesmium erythraeum
- Trichodontidae ... Triébert, Charles
- Trielis ... trim tab
- Trimalchio ... Triodia
- Triodion ... tripletail
- Triplett, Donald ... triticale
- Triticum ... trochlear nucleus
- Trochodendraceae ... Trolls World Tour
- Trolltunga ... tropical grassland
- tropical greenhouse ... trough
- trough withering ... true ass
- true badger ... True’s porpoise
- True-Born Englishman, The ... Trung Sisters, Temple of the
- Trung Trac and Trung Nhi ... try
- try ... Tsavo National Park
- Tsawwassen ... Tsonic language
- TSOP ... TTK
- TTL metering ... tuberous-rooted begonia
- Tuberville, Thomas Hawley ... Tudhaliyas IV
- Tudi Gong ... Tűkzút
- Tula ... Tumbez
- Tumbez ... tung oil
- tung oil tree ... Tunny
- tunny ... turbidite
- turbidity ... turion
- Turishcheva, Lyudmila ... Turkoman rug
- Turks and Caicos Islands ... Turnip Winter
- turnip-rooted celery ... Tuscarora
- Tuscarora Deep ... Tuxpan
- Tuxpan de Rodríguez Cano ... Twelve Tables, Law of the
- Twelve Tribes of Israel ... Twin Peaks
- Twin Peaks ... Two Guys, a Girl and a Pizza Place
- Two Hands: The Leon Fleisher Story ... two-pole strategy
- two-process theory of attention ... tyloma
- Tylonycteris ... Type Ia supernova
- type Ib congenital disorder of glycosylation ... Tyra Banks Show, The
- tyramine ... Tyva Basin
- Tyvan ... Tết Nguyên Ɖán
