| Teatrul Tineretului Piatra-Neamt | Teatrul Tineretului Piatra-Neamt | Romania, Piatra Neamț, Piața Ștefan cel Mare 1 | 1966-01-30 | 1985-11-18 | 1966–1985 | 3 | |
| Teatro Comunale | Teatro Comunale | Italy, Monfalcone, Corso del Popolo, 20 | 1999-01-12 | 2017-01-18 | 1999–2017 | 3 | |
| Theatro Kampereio | Theatro Kampereio (Caberio theater) | Greece, Ioannina | 1984-02-03 | 2012-02-26 | 1984–2012 | 3 | |
| Theater Lieve Vrouw | Theater Lieve Vrouw | Netherlands, Amersfoort, Lieve Vrouwestraat 13 | 2000-04-15 | -- | 2000–2008 | 3 | |
| Teatre Monumental | Teatre Monumental | Spain, Mataró, Carrer de la Riera, 169 | 1994-02-04 | 1998-03-15 | 1994–2008 | 3 | |
| Teatro Filodrammatico | Teatro Filodrammatico | Italy, Trieste | 1892-04-05 | -- | 1892–1897 | 3 | |
| Teatro Morlacchi | Teatro Morlacchi | Italy, Perugia, Piazza Morlacchi 13 | 2001-12-04 | 2006-01-22 | 2001–2006 | 3 | |
| Theater am Stadtpark | Theater am Stadtpark | Austria, Graz, Stadtpark 1 | 1892-04-23 | 1895-05-24 | 1892–1897 | 3 | |
| Tremont Theatre | Tremont Theatre | United States of America, Boston, 88 Tremont Street | 1894-04-18 | 1904-01-26 | 1894–1904 | 3 | |
| Teatro Sérgio Cardoso | Teatro Sérgio Cardoso | Brazil, Bela Vista, Rua Rui Barbosa, 153 | 1990-08-10 | 2024-04-28 | 1990–2024 | 3 | |
| Théâtre de la Cité Internationale | Théâtre de la Cité Internationale | France, Paris, 21a Boulevard Jourdan | 1981-04-23 | 2014-05-11 | 1981–2014 | 3 | |
| Teatro Principal de Zaragoza | Teatro Principal de Zaragoza | Spain, Zaragoza, Plaza de José Sinués y Urbiola, 2 | 1902-10-04 | -- | 1902–2018 | 3 | |
| Teatro Orientatión at Centro Cultural del Bosque | Teatro Orientatión at Centro Cultural del Bosque | Mexico, Mexico by, D.F., 11560 Ciudad de México | 1961-09-22 | -- | 1961–1969 | 3 | |
| Theatro Pallas | Theatro Pallas | Greece, Thessaloniki | 1939-05-08 | 1940-05-31 | 1939–1940 | 3 | |
| Tarragon Theatre | Tarragon Theatre | Canada, Toronto, 30 Bridgman Ave | 1983-02-17 | 2015-11-01 | 1983–2015 | 3 | |
| Théâtre du Gymnase | Théâtre du Gymnase | France, Paris, 38, boulevard Bonne Nouvelle | 1899-10-29 | -- | 1899–1913 | 3 | |
| Tōkyō Geijutsu Gekijō | Tōkyō Geijutsu Gekijō (Tokyo Metropolitan Theatre) | Japan, 1 Chome-8-1 Nishiikebukuro, Toshima City, Tokyo 171-0021, Japan | 1994-09-29 | 2014-11-24 | 1994–2014 | 3 | |
| Teatre Rialto Valencia | Teatre Rialto Valencia | Spain, Valencia, Plaça de l'Ajuntament, 17 | 2003-02-26 | 2013-12-14 | 2003–2013 | 3 | |
| Theater am Kurfurstendamm | Theater am Kurfurstendamm | Germany, Berlin, Kurfürstendamm | 1935-10-04 | 1983-10-13 | 1935–1983 | 3 | |
| The Grand | The Grand | United States of America, Atlanta | 1903-10-20 | 1908-10-05 | 1903–1908 | 3 | |
| Tulane Theater | Tulane Theater | United States of America, New Orleans, 6823 St Charles Ave | 1904-11-28 | 1908-09-20 | 1904–1908 | 3 | |
| Theater Lüneburg | Theater Lüneburg | Germany, Lüneburg, An den Reeperbahnen 3 | 2001-09-28 | 2008-03-20 | 2001–2008 | 3 | |
| Tĕšínské divadlo Scena polska | Tĕšínské divadlo Scena polska | Czech Republic, Český Těšín, Ostravská 67 | 1988-05-21 | -- | 1988–2016 | 3 | |
| Theater Trier | Theater Trier | Germany, Trier, Am Augustinerhof 1 | 1974-01-24 | 2012-06-09 | 1974–2012 | 3 | |
| Theatre Royal | Theatre Royal Plymouth | England, Plymouth, Royal Parade | 1993-05-11 | 2017-10-07 | 1993–2017 | 3 | |
| Teatro Julio Castillo | Teatro Julio Castillo | Mexico, Ciudad de México, CDMX, Paseo de la Reforma y, campo Marte S/N, Polanco Chapultepec, Miguel Hidalgo | 2018-07-21 | 2020-01-19 | 2018–2020 | 3 | |
| Theater aan de Schie | Theater aan de Schie | Netherlands, Schiedam, Stadserf 1 | 2001-12-18 | -- | 2001–2017 | 3 | |
| Théâtre Vidy-Lausanne (Salle Charles Apothéloz) | Théâtre Vidy-Lausanne (Salle Charles Apothéloz) | Switzerland, Lausanne, Avenue Emile-Henri-Jaques-Dalcroze 5 | 1993-01-21 | 2013-03-29 | 1993–2013 | 3 | |
| Tammerfors | Tammerfors | Finland, Tammerfors | 1893-04-13 | 1994-- | 1893–1993 | 3 | |
| Teatro della Cometa | Teatro della Cometa | Italy, Rome, Via del Teatro Marcello | 2003-01-28 | 2006-06-25 | 2003–2006 | 3 | |
| Teatro Nuovo | Teatro Nuovo | Italy, Milan, Piazza San Babila | 1941-01-15 | 1993-03-31 | 1941–1993 | 3 | |
| Tveten ungdomsskole | Tveten ungdomsskole | Norway, Porsgrunn | 2005-10-20 | 2005-10-21 | 2005–2006 | 3 | |
| Theatre Royal | Theatre Royal | England, Bradford, West Yorkshire, Manningham Lane | 1911-06-12 | 1911-06-17 | 1911 | 3 | |
| The Playhouse | The Playhouse | Australia, Adelaide, Festival Drive | 1978-08-11 | 1978-09-02 | 1978–1989 | 3 | |
| Trinity Square Repertory Company | Trinity Square Repertory Company | United States of America, Providence, 201 Washington Street | 1968-03-21 | 1984-01-01 | 1968–1983 | 3 | |
| Teatro Fernán Gómez - Centro de Arte | Teatro Fernán Gómez - Centro de Arte | Spain, Madrid, Calle de Colón, 4 | 2011-04-07 | 2017-12-17 | 2011–2017 | 3 | |
| Theatre Royal | Theatre Royal | Australia, Hobart, 29 Campbell Street | 1891-10-14 | 1971-04-24 | 1891–1971 | 3 | |
| Theatro Olympia | Theatro Olympia | Greece, Pyrgos | 1912-09-02 | -- | 1912–1916 | 3 | |
| Teatro Principal | Teatro Principal | Spain, Valencia, Barcas, 15 | 1981-01-21 | 2008-11-09 | 1981–2008 | 3 | |
| Théâtre Marigny | Théâtre Marigny | France, Paris, Carré Marigny | 1909-02-27 | 2003-11-09 | 1909–2003 | 3 | |
| Theater Lübeck | Theater Lübeck | Germany, Lübeck, Beckergrube 16 | 1990-12-19 | 2018-03-17 | 1990–2017 | 3 | |
| Telemark gymnas | Telemark gymnas | Norway, Bø i Telemark | 1960-10-08 | -- | 1960–1971 | 3 | |
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