| Teatrul Național Radiofonic (Societatea Română de Radiodifuziune) | Teatrul Național Radiofonic (Societatea Română de Radiodifuziune) | Romania, Bucureşti, Str. General Berthelot, Nr. 60-64 | 1929-09-28 | 1991-- | 1929–2006 | 16 | |
| Teatro Studio | Teatro Studio | Italy, Milan, Via Rivoli 6 | 2002-01-10 | 2002-01-27 | 2002 | 1 | |
| Teatro Bellini | Teatro Bellini | Italy, Palermo, Piazza Bellini, 1-90133 | 1892-12-11 | -- | 1892 | 1 | |
| Tynset | Tynset | Norway, Tynset | 1991-10-15 | -- | 1991–2005 | 4 | |
| Tisch School of the Arts | Tisch School of the Arts | United States, New York, 721 Broadway, 3rd Floor | 2005-09-27 | 2005-10-02 | 2005 | 1 | |
| Theatre Royal | Theatre Royal | England, Nottingham, Theatre Square | 2018-02-05 | 2018-02-10 | 2018 | 1 | |
| The Grand | The Grand | United States, Atlanta | 1906-12-27 | 1906-12-27 | 1906 | 1 | |
| Teatr Polski | Teatr Polski | Poland, Szczecin, Swarożyca 5 | 2007-09-15 | -- | 2007 | 1 | |
| Teatro Principe di Napoli | Teatro Principe di Napoli | Italy, Catania | 1907-10-14 | -- | 1907 | 1 | |
| Turun Suomalainen Teatteri | Turun Suomalainen Teatteri | Finland, Turku | 1880-04-28 | -- | 1880–1928 | 2 | |
| Theatro Pallas | Theatro Pallas | Greece, Thessaloniki | 1939-05-08 | 1940-05-31 | 1939–1940 | 3 | |
| Teatro Principal de Castellón | Teatro Principal de Castellón | Spain, Castellón de la Plana, Plaza de la Paz, s/n | 2005-10-15 | 2005-10-16 | 2005–2018 | 2 | |
| Teatro Taib | Teatro Taib | Brazil, São Paulo | 1988-03- | -- | 1988 | 1 | |
| Theatro Kappa | Theatro Kappa | Greece, Athens, 2 Kypselis Street | 2004-11-12 | 2005-02-06 | 2004 | 1 | |
| Towarzystwo Miłośników Sceny | Towarzystwo Miłośników Sceny | Poland, Warsaw | 1899-01-22 | 1902-03-05 | 1899–1901 | 2 | |
| Trossnäs lägerplats | Trossnäs lägerplats | Sweden, Trossnäs | 1911-06-30 | -- | 1911 | 1 | |
| Teatro Erba | Teatro Erba | Italy, Torino, Corso Moncalieri 241 | 2007-03-20 | 2007-04-01 | 2007 | 1 | |
| Théâtre de la Ville Aoste | Théâtre de la Ville Aoste | Italy, Aosta, Rue Xavier de Maistre, 21, | 2004-03-22 | -- | 2004 | 1 | |
| The Shakespeare Theatre | The Shakespeare Theatre | United States, Washington D.C., 450 7th St NW | 1998-01-20 | 2006-10-22 | 1998–2006 | 4 | |
| Theatret i Kristiansund | Theatret i Kristiansund | Norway, Kristiansund | 1880-04-07 | -- | 1880–1896 | 6 | |
| Trondhjems Katedralskole | Trondhjems Katedralskole | Norway, Trondheim | 1973-10-17 | -- | 1973 | 1 | |
| Theater der Stadt Gummersbach | Theater der Stadt Gummersbach | Germany, Gummersbach, Moltkestr. 50 | 2002-12-18 | -- | 2002–2005 | 2 | |
| Teatro Apollo | Teatro Apollo | Italy, Genova | 1893-04-20 | -- | 1893 | 1 | |
| Trondenes fort | Trondenes fort | Norway, Harstad, Trondenes | 1994-03-21 | -- | 1994 | 1 | |
| Teatro de Estudantes | I Festival de Teatro de Estudantes | Brazil, Recife | 1958-03-24 | -- | 1958 | 1 | |
| Teatro Comunale Bolzano | Teatro Comunale Bolzano | Italy, Bolzano, Piazza Verdi 40 | 1994-10-25 | 2011-10-23 | 1994–2011 | 2 | |
| Teatr Bagatela | Teatr Bagatela | Poland, Kraków, ul. Karmelicka 6 | 1922-01-16 | -- | 1922–1925 | 4 | |
| Theater und Orchester Gmbh Neubrandenburg/Neustrelitz | Theater und Orchester Gmbh Neubrandenburg/Neustrelitz | Germany, Neustrelitz, Hertelstraße 6 | -- | -- | | | |
| Teatro Villa de Molina | Teatro Villa de Molina | Spain, Murcia, Carretera del Chorrico, 10 | 2010-03-13 | -- | 2010 | 1 | |
| The Magenta Giraffe Theatre Company | The Magenta Giraffe Theatre Company | United States, Detroit, 1301 W Lafayette Blvd | 2011-09-16 | 2011-10-08 | 2011 | 1 | |
| Teatro Guararapes | Teatro Guararapes | Brazil, Recife, Av. Prof. Andrade Bezerra | 1989-05- | -- | 1989 | 1 | |
| The Black Swan | The Black Swan | United States, Ashland, Corner of E Main And Pioneer St | 1999-03-31 | 1999-10-31 | 1999 | 1 | |
| Tapolca | Tapolca | Hungary, Tapolca | 1925-02-07 | -- | 1925 | 1 | |
| Trysil | Trysil | Norway, Trysil | 1966-04-21 | -- | 1966–1971 | 2 | |
| Theater de Kunstgreep | Theater de Kunstgreep | Netherlands, Oostzaan, Kerkbuurt 4, | 2012-03-08 | -- | 2012 | 1 | |
| Tilburg | Tilburg | Netherlands, Tilburg | -- | -- | | | |
| Teatro Cantiere Florida | Teatro Cantiere Florida | Italy, Florence, Via Pisana 111r | 2003-12-03 | 2003-12-04 | 2003 | 1 | |
| Theatre Royal Stratford East | Theatre Royal Stratford East | England, London, Gerry Raffles Square | 1954-06-01 | -- | 1954 | 1 | |
| Törökszentmiklós | Törökszentmiklós | Hungary, Törökszentmiklós | 1924-08-01 | -- | 1924–1926 | 3 | |
| Teatro del Parco | Teatro del Parco | Italy, Mestre, Venice, Via Gori, 8 | 2005-03-16 | 2005-03-17 | 2005 | 1 | |
| Theater Stok | Theater Stok | Switzerland, Zürich, Hirschengraben 42 | 2009-11-25 | 2009-12-06 | 2009 | 1 | |
| Teatr Popularny | Teatr Popularny | Poland, Warsaw, Jana Zamoyskiego 20 | 1979-12-08 | -- | 1979 | 1 | |
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