| Theatre Royal | Theatre Royal | England, Newcastle upon Tyne, Grey Street | 1997-09-25 | 2018-02-17 | 1997–2018 | 2 | |
| Throndhjems Theater | Throndhjems Theater | Norway, Trondheim, Prinsens Gate 20 | 1861-11-17 | 1863-11-04 | 1861–1863 | 2 | 1 |
| Teatro Aberto | Teatro Aberto | Portugal, Lisbon, R. Armando Cortez, 213 880 086 | 2002-02-26 | 2025-04-20 | 2002–2025 | 2 | |
| Tribühne Norderstedt | Tribühne Norderstedt | Germany, Norderstedt, Jörg Peter Hahn Pl. 1 | 2003-01-21 | -- | 2003–2017 | 2 | |
| Teatro Auditorio Ciudad de Alcobendas | Teatro Auditorio Ciudad de Alcobendas | Spain, Alcobendas, Calle de Blas de Otero 4 | 2007-05-05 | 2007-05-06 | 2007–2025 | 2 | |
| Teatro Arena | Teatro Arena | Italy, Bologna | 1893-08-24 | 1896-07-23 | 1893–1896 | 2 | |
| Theater & Congres Orpheus | Theater & Congres Orpheus | Netherlands, Apeldoorn, Churchillplein 1 | 2008-03-31 | 2008-04-01 | 2008–2017 | 2 | |
| Théâtre des Capucins | Théâtre des Capucins | Luxembourg, Luxembourg, 9 pl. du Théâtre | 2000-10-07 | 2003-02-19 | 2000–2003 | 2 | |
| Tampere | Tampere | Finland, Tampere | 1993-- | 2009-08-04 | 1993–2009 | 2 | |
| Tana | Tana | Norway, Tana | 1990-10-07 | -- | 1990–2009 | 2 | |
| Todd Wehr Theater, Performing Arts Center | Todd Wehr Theater, Performing Arts Center | United States of America, Milwaukee, 325 West Walnut Street | 1971-04-23 | 1987-04-05 | 1971–1987 | 2 | |
| Théâtre du Tertre | Théâtre du Tertre | France, Paris, 81 rue Lepic | 1960-11-01 | -- | 1960–1963 | 2 | |
| Tierp | Tierp | Sweden, Tierp | 1989-10-14 | 1989-10-14 | 1989–1993 | 2 | |
| Teatro da Trindade | Teatro da Trindade | Portugal, Lisboa, Largo da Trindade, 7-a | 1972-11-21 | 2021-07-31 | 1972–2021 | 2 | |
| Théâtre Royal de Namur | Théâtre Royal de Namur | Belgium, Namur, Pl. du Théâtre 2, 5000 | 2022-10-12 | 2025-11-06 | 2022–2025 | 2 | |
| Teatro Giovanni Testori | Teatro Giovanni Testori | Italy, Forlì, Viale Amerigo Vespucci, 13 | 2004-01-10 | -- | 2004–2008 | 2 | |
| Teatr im. Ludwika Solskiego | Teatr im. Ludwika Solskiego | Poland, Tarnów, Adama Mickiewicza 4 | 1978-11-26 | -- | 1978–2002 | 2 | |
| Theater Palme | Theater Palme | Russia, St. Petersburg | 1902-01-24 | -- | 1902 | 2 | |
| Taastrup Teater | Taastrup Teater | Denmark, Taastrup, Kjeld Abells Plads 1 | 2002-09-29 | -- | 2002–2006 | 2 | |
| Théâtre du Rideau Vert | Théâtre du Rideau Vert | Canada, Montréal, 4664 Rue Saint-Denis | 1969-04-02 | 1995-02-11 | 1969–1995 | 2 | |
| Théâtre Municipal de Charleville-Mézières | Théâtre Municipal de Charleville-Mézières | France, Charleville-Mézières, Place Du Théatre | 2015-03- | 2023-09-17 | 2015–2023 | 2 | |
| Teatret i Storehedinge | Teatret i Storehedinge | Denmark, Storehedinge | 1902-11-13 | -- | 1902–1907 | 2 | |
| Teatro Alfieri | Teatro Alfieri | Italy, Genova | 1895-08-29 | -- | 1895–1898 | 2 | |
| Theater der Altstadt | Theater der Altstadt | Germany, Stuttgart, Rotebühlstraße 89 | 1992-03-04 | -- | 1992–2014 | 2 | |
| Theatro Kentrikon | Theatro Kentrikon (Central Theater) | Greece, Athens | 1926-02-11 | -- | 1926–1933 | 2 | |
| Teatr Zimowy N. Golińskiego | Teatr Zimowy N. Golińskiego | Poland, Kalisz | 1882-11-23 | -- | 1882–1884 | 2 | |
| Theatrikos Stathmos | Theatrikos Stathmos (Heraklion Theater Station) | Greece, Heraklion / Irakleio | 2005-01-15 | 2011-12-16 | 2005–2011 | 2 | |
| Teatteri Takomo | Teatteri Takomo | Finland, Helsinki, Fredrikinkatu 18 | 1997-10-01 | 2001-12-14 | 1997–2001 | 2 | |
| Theater in der Klosterstraße | Theater in der Klosterstraße | Germany, Berlin, Klosterstraße 43 | 1928-03-20 | -- | 1928 | 2 | |
| Teatro del Corso | Teatro del Corso | Italy, Bologna | 1891-11-28 | -- | 1891–1892 | 2 | |
| Teatar Anton Panov | Teatar Anton Panov | Macedonia, Strumica, Ulica Mosha Pijade 1 | 1983-10-08 | 2018-05-19 | 1983–2017 | 2 | |
| Theater Heilbronn | Theater Heilbronn | Germany, Heilbronn, Berliner Pl. 1 | 2010-09-24 | 2011-02-02 | 2010–2018 | 2 | |
| Theatro Rex | Theatro Rex | Greece, Komotini | 1940-02- | -- | 1940 | 2 | |
| Teatrul Evreiesc de Stat Bucuresti | Teatrul Evreiesc de Stat Bucuresti (State Jewish Theater) | Romania, Bucharest, Iuliu Barasch Street, no. 15, 3rd sector | 1927-- | 1928-- | 1927–1972 | 2 | |
| Teatro Lauro Rossi | Teatro Lauro Rossi | Italy, Macerata MC, Piazza Della Libertà 21 | 2000-02-22 | 2008-02-03 | 2000–2008 | 2 | |
| Teatro Out Off | Teatro Out Off | Italy, Milan, Via Mac Mahon, 16 | 2000-01-11 | 2008-02-02 | 2000–2008 | 2 | |
| Théâtre du Cube Noir | Théâtre du Cube Noir | France, Strasbourg, 4 allée du Sommerhof | 2013-02-11 | 2017-03-26 | 2013–2017 | 2 | |
| Teatro del Ciglio | Teatro del Ciglio | Italy, Lucca, Piazza del Giglio, 13/15, 55100 | 1977-11-19 | 2012-01-29 | 1977–2012 | 2 | |
| Theatre Royal | Theatre Royal | England, Wakefield, 12 Drury Lane | 1993-10-07 | 1993-10-09 | 1993–1999 | 2 | |
| Theatro Elsa Vergi | Theatro Elsa Vergi (Elsa Vergi Theater) | Greece, Athens | 1967-02-03 | 1972-04-02 | 1967–1971 | 2 | |
| Teatro Gualeguaychú | Teatro Gualeguaychú (Gualeguaychú Theatre) | Argentina | 2025-03-22 | 2025-03-28 | 2025 | 2 | |
| Taunton Brewhouse | Taunton Brewhouse | England, Taunton, Coal Orchard | 2003-07- | 2014-11-11 | 2003–2014 | 2 | |
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