| Terminalia superba | Terminalia tetrandra | Terminalia triflora |
| Terminalia valverdeae | Terminalia virens | Terminalia yapacana |
| Terminator (character) | Terminator 2: Judgment Day | Terminator 3: Rise of the Machines |
| Terminator Genisys | Terminator Salvation | Terminator Salvation (video game) |
| Terminator: The Sarah Connor Chronicles | Terminologia Anatomica | Terminologia Embryologica |
| Terminologia Histologica | Terminology | Termobacterium |
| Terms of Endearment | Termus aquaticus | Ternary computer |
| Ternary numeral system | Ternas | Ternopil Airport |
| Teroual | Terpene | Terpsinoë |
| Terpsiphone viridis | Terra Alta, West Virginia | Terra Nova Expedition |
| Terrabacteria | Terrace (agriculture) | Terracotta |
| Terrafugia Transition | Terramare culture | Terrapene |
| Terrapene carolina | Terraria | Terre Haute International Airport |
| Terre Haute, Indiana | Terrebonne Parish, Louisiana | Terrell Hills, Texas |
| Terrence Howard | Terrence Jones | Terrence Malick |
| Terrestrial planet | Terril, Iowa | Territorial dispute |
| Territorial evolution of Canada | Territorial integrity | Territorial nationalism |
| Territorial waters | Territory (country subdivision) | Terrorism |
| Terrorism in Sinai | Terrorism in Yemen | Terry Allen (boxer) |
| Terry Antonis | Terry Brooks | Terry Crews |
| Terry Eagleton | Terry Fox | Terry Griffiths |
| Terry McDermott | Terry Neill | Terry O'Quinn |
| Terry Phelan | Terry Sanford | Terry Vaughn (referee) |
| Terry Venables | Terry, Mississippi | Terry, Montana |
| Terrytown, Nebraska | Terryville, Connecticut | Tersane Konferansı |
| Tersane-i Amire | Tersâne-i Âmire | Tersicoccus phoenicis |
| Tersus | Tert-Butyllithium | Tertiary |
| Tertiary bronchus | Tertiary sector of the economy | Tertullian |
| Tertullianus | Teruyuki Moniwa | Tervijan |
| Tesamorelin | Tescott, Kansas | Teshkeel Comics |
| Teshome Getu | Tesla | Tesla (unit) |
| Tesla coil | Tesla Model 3 | Tesla Model S |
| Tesla Motors | Tess (film) | Tess Gerritsen |
| Tess Wester | Tessa Ferrer | Tessellation |
| Tesshō Genda | Test | Test automation |
| Test call generator | Test case | Test drive |
| Test Drive (series) | Test Drive (video game) | Test Drive 2001 |
| Test Drive 4 | Test Drive 5 | Test Drive 6 |
| Test Drive Cycles | Test Drive III: The Passion | Test Drive Le Mans |
| Test Drive Off-Road | Test Drive Off-Road 2 | Test Drive Off-Road 3 |
| Test Drive Unlimited | Test Drive Unlimited 2 | Test Drive: Eve of Destruction |
| Test Drive: Ferrari Racing Legends | Test Drive: Off-Road Wide Open | Test pilot |
| Test Pilot (film) | Test tube | Test-driven development |
| Tester | Testes | Testicle |
| Testicular artery | Testicular cancer | Testicular prostheses |
| Testicular vein | Testing Mom | Testis |
| Testosterone | Testudinata | Testudines |
| Testudinidae | Testudinoidea | Testudo |
| Testudo graeca | Testudo graeca nabeulensis | Testudo hermanni |
| Testudo horsfieldii | Testudo kleinmanni | Testudo marginata |
| Tet Offensive | Teta, Alf Marra | Tetanic contraction |
| Tetanurae | Tetarteron | Tethered balloon |
| Tethering | Tetra Pak | Tetracaine |
| Tetracerus quadricornis | Tetrachloroethylene | Tetraclinis articulata |
| Tetracosane | Tetracycline | Tetracyclines |
| Tetradecane | Tetraethyllead | Tetrafluoromethane |
| Tetragonal | Tetragonal crystal system | Tetragrammaton |
| Tetrahedral molecular geometry | Tetrahedron | Tetrahydrocannabinol |
| Tetrahydrofuran | Tetrahydrogestrinone | Tetramitia |
| Tetraneutron | Tetrao mlokosiewiczi | Tetrao tetrix |
| Tetraodon | Tetraodon cutcutia | Tetraodon fluviatilis |
| Tetraodon lineatus | Tetraodon mbu | Tetraodon nigroviridis |
| Tetraodon pustulatus | Tetraodontidae | Tetraodontiformes |
| Tetraodontinae | Tetraodontoidei | Tetraoninae |
| Tetraplegia | Tetrapleurodon geminis | Tetrapod |
| Tetrapoda | Tetrapropylammonium perruthenate | Tetrapturus |
| Tetrapturus angustirostris | Tetrapturus belone | Tetrapturus georgii |
| Tetrapturus pfluegeri | Tetraquark | Tetrarchy |
| Tetrasodium pyrophosphate | Tetrastes | Tetrastes bonasia |
| Tetratriacontane | Tetraviridae | Tetrax tetrax |
| Tetrigidae | Tetris | Tetrode |
| Tetrodotoxin | Tetrose | Tetroxoprim |
| Tetsu Katayama | Tetsujin 28-go | Tetsuya Nomura |
| Tettigoniidae | Tettnang | Tetum |
| Teucrioideae | Teucrium | Teucrium antilibanoticum |
| Teucrium chamaedrys | Teucrium chamaepitys | Teucrium marum |
| Teucrium polium | Teucrium procerum | Teucrium pruinosum |
| Teucrium rigidum | Teucrium socotranum | Teuthida |
| Teutopolis, Illinois | Teuvo Pakkala | TEV protease |
| Teva Pharmaceutical Industries | Teva Pharmaceuticals | Tevfik Fikret |
| Tewhida Ben Sheikh | Tex | TeX |
| Tex Avery | Texaco | Texar's Revenge, or, North Against South |
| Texarkana, Arkansas | Texarkana, Texas | Texas |
| Texas Chainsaw 3D | Texas Charter Township, Michigan | Texas County, Missouri |
| Texas Institute for Genomic Medicine | Texas Instruments | Texas Tech University |
| Texas, Wisconsin | Texe Marrs | Texel (graphics) |
| Texico, New Mexico | Texier's disease | Text base environment |
| Text corpus | Text criticism | Text editor |
| Text file | Text linguistics | Text mining |
| Text Retrieval Conference | Text User Interface | Text-based user interface |
| TextEdit | Textile | Textile arts |
| Textile industry in Pakistan | Textile manufacturing | Textile printing |
| Textiles of Pakistan | Texting while driving | TextMate |
| Textual criticism | Textual User Interface | Texture addressing |
| Texture filtering | Texture mapping | Textus Receptus |
| TextWrangler | Teymur Kuh | Teymurabad, Golestan |
| Teymuraz Gabashvili | Tf-idf | TF/IDF |
| TF1 | Tf–idf | TGF beta |
| TGV | Th | TH-dimer |
| Tha'er Bawab | Thaao Penghlis | Thaïs Henríquez |
