| Trollhättan | Trollhättan | Sweden, Trollhättan | 1991-04-04 | 1991-04-04 | 1991 | 1 | |
| Troms Fylkeskultursenter | Troms Fylkeskultursenter | Norway, Tromsø, Strandveien 95 | 1997-11-10 | 1997-11-11 | 1997 | 1 | |
| Tromstun skole | Tromstun skole | Norway, Tomasjord, Tellusveien 1 | 1975-12-04 | 1976-01-16 | 1975 | 1 | |
| Tromsø | Tromsø | Norway, Tromsø | 1898-01-10 | 1999-06-19 | 1898–2015 | 9 | |
| Tromsøhallen | Tromsøhallen | Norway, Tromsø, Templarheimen | 1997-11-09 | 1997-11-10 | 1997 | 1 | |
| Tromøy ungdomsskole | Tromøy ungdomsskole | Norway, Færvik, Aust-Agder | 1997-09-01 | -- | 1997 | 1 | |
| Tron Theatre | Tron Theatre | Scotland, Glasgow, 63 Trongate | 2004-06-17 | 2015-10-24 | 2004–2015 | 2 | |
| Trondenes fort | Trondenes fort | Norway, Harstad, Trondenes | 1994-03-21 | -- | 1994 | 1 | |
| Trondheim | Trondheim | Norway, Trondheim | 1972-11-09 | -- | 1972–2015 | 2 | |
| Trondheim Forfattersentrum | Trondheim Forfattersentrum | Norway, Trondheim, Kjøpmannsgata 40 | 2007-01-15 | 2007-01-24 | 2007 | 1 | |
| Trondheim Torg | Trondheim Torg | Norway, Trondheim, Kongens gate 9 | 2004-11-06 | 2004-11-13 | 2004 | 1 | |
| Trondhjems Katedralskole | Trondhjems Katedralskole | Norway, Trondheim | 1973-10-17 | -- | 1973 | 1 | |
| Trondhjems Nationale Scene | Trondhjems Nationale Scene | Norway, Trondheim, Prinsens Gate 20 | 1911-09-16 | -- | 1911–1924 | 11 | |
| Trossnäs lägerplats | Trossnäs lägerplats | Sweden, Trossnäs | 1911-06-30 | -- | 1911 | 1 | |
| Trudvang | Trudvang | Norway, Surna | 1956-02-10 | -- | 1956 | 1 | |
| Trueblood Auditorium, Frieze Building, University of Michigan | Trueblood Auditorium, Frieze Building, University of Michigan | United States, Ann Arbor | 1966-04-06 | 1966-04-09 | 1966 | 1 | |
| Trysil | Trysil | Norway, Trysil | 1966-04-21 | -- | 1966–1971 | 2 | |
| Trøgstad Ungdomsskole | Trøgstad Ungdomsskole | Norway, Trøgstad, Trøgstad | 2005-11-10 | -- | 2005 | 1 | |
| Trøndelag Teater | Trøndelag Teater | Norway, Trondheim, Prinsens Gate 20 | 1938-09-01 | 2018-10-12 | 1938–2020 | 56 | |
| Tschitalischte Slavjanska | The Lounge of Tschitalischte Slavjanska besseda | Bulgaria, Sofia | 1994-11-08 | -- | 1994 | 1 | |
| Tsjernigivs'kij molodizjnij teatr Vistavi | Tsjernigivs'kij molodizjnij teatr Vistavi | Ukraine, Tsjernihiv | 2004-10-01 | -- | 2004 | 1 | |
| Tsukiji Buddhist Hall | Tsukiji Buddhist Hall | Japan, Tokyo, 3 Chome−15−1 | 1993-02-05 | 1993-02-07 | 1993 | 1 | |
| Tsukiji Little Theatre | Tsukiji Little Theatre | Japan, Tokyo | 1924-09-15 | 1938-02-15 | 1924–1938 | 8 | |
| TU-Nantes | TU-Nantes | France, Nantes, Chemin de la Censive du Tertre | 2012-02-28 | 2018-02-23 | 2012–2018 | 2 | |
| Tufts Arena Theater | Tufts Arena Theater | United States, Medford, 389 Boston Avenue | 1957-11-15 | 2019-11-02 | 1957–2019 | 2 | |
| Tulane Theater | Tulane Theater | United States, New Orleans, 6823 St Charles Ave | 1904-11-28 | 1908-09-20 | 1904–1908 | 3 | |
| Tulcea | Tulcea | Romania, Tulcea | -- | -- | | | |
| Tulgheş | Tulgheş | Romania, Tulgheş | -- | -- | | | |
| tulleteater | tulleteater | Belarus | -- | -- | | | |
| Turbulences | Festival Turbulences | France, Strasbourg | 1998-06-11 | 1998-06-13 | 1998 | 1 | |
| Turda | Turda | Romania, Turda | 1892-01-12 | -- | 1892–1917 | 2 | |
| Turku | Turku | Finland, Turku | -- | -- | | | |
| Turku (Åbo) | Turku (Åbo) | Finland, Turku (Åbo) | 1878-10-16 | 1893-09-14 | 1878–1893 | 4 | |
| Turner Theatre | Turner Theatre | United States, New Ulm | 1904-10-16 | 1904-10-16 | 1904 | 1 | |
| Turneteatret i Trøndelag | Turneteatret i Trøndelag | Norway, Verdal, Johannes Minsaas Plass 4 | -- | -- | | | |
| Turnhalle | Turnhalle | Switzerland, Klingnau | 1991-08-21 | -- | 1991 | 1 | |
| Turnhalle des Alten Gymnasiums | Turnhalle des Alten Gymnasiums | Germany, Bremen | 1945-12-19 | -- | 1945 | 1 | |
| Turnhallen | Turnhallen | Norway, Mandal | 1952-01-27 | -- | 1952–1960 | 3 | |
| Turnhallen | Turnhallen | Norway, Lillesand | 1997-09-21 | -- | 1997 | 1 | |
| Turnişor | Turnişor | Romania, Sibiu | -- | -- | | | |
| Turteatern | Turteatern | Sweden, Johanneshov, Lågskärsvägen 13 | 2018-11-29 | 2018-12-31 | 2018 | 1 | |
| Turun Kaupunginteatteri | Turun Kaupunginteatteri | Finland, Turku, Östra Strandgatan 14 | 1931-- | 2008-04-12 | 1931–2007 | 7 | |
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