| Theatro Malliaropouleion | Theatro Malliaropouleion (Malliaropoulio Theater) | Greece, Tripoli | 1912-03-28 | -- | 1912 | 1 | |
| Teatro Estudio San Sebastián | Teatro Estudio San Sebastián | Spain, San Sebastian, Heriz Pasealekua, 16, | 1966-10-03 | -- | 1966 | 1 | |
| Theater Center Forum | Theater Center Forum | Austria, Vienna, Porzellangasse 50 | 2006-04-21 | -- | 2006 | 1 | |
| Turner Theatre | Turner Theatre | United States of America, New Ulm | 1904-10-16 | 1904-10-16 | 1904 | 1 | |
| Tingvoll | Tingvoll | Norway, Tingvoll | 1995-10-20 | -- | 1995–1997 | 2 | |
| Théâtre de l'Oeuvre | Théâtre de l'Oeuvre | France, Paris, 55 Rue de Clichy | 1897-11-09 | 1904-03-12 | 1897–1964 | 20 | |
| The Grand | The Grand | United States of America, Fort Smith | 1903-11-12 | 1903-11-12 | 1903 | 1 | |
| Trnavské divadlo | Trnavské divadlo | Slovak Republic, Trnava | 1999-03-12 | -- | 1999 | 1 | |
| Teatre Principal | Teatre Principal | Spain, Olot, Girona, Passeig d'en Blay, 5 | 2008-10-10 | -- | 2008 | 1 | |
| Theatro Pallas | Theatro Pallas | Greece, Athens | 1939-10-03 | 1939-10-18 | 1939 | 1 | |
| Teatret i Storehedinge | Teatret i Storehedinge | Denmark, Storehedinge | 1902-11-13 | -- | 1902–1907 | 2 | |
| Théâtre Maxime Gorki | Théâtre Maxime Gorki | France, Le Petit-Quevilly, Rue François Mitterrand | 1973-10-29 | 2005-01-27 | 1973–2005 | 3 | |
| Theater Itzehoe | Theater Itzehoe | Germany, Itzehoe, Theaterplatz | 2006-11-28 | -- | 2006–2014 | 2 | |
| Théâtre de la Ville Aoste | Théâtre de la Ville Aoste | Italy, Aosta, Rue Xavier de Maistre, 21, | 2004-03-22 | -- | 2004 | 1 | |
| The Grand | The Grand | United States of America, St. Louis | 1904-01-27 | 1904-01-30 | 1904 | 1 | |
| Teatro Petrarca | Teatro Petrarca | Italy, Arezzo, Via Guido Monaco 12 | 2001-03-13 | 2001-03-14 | 2001 | 1 | |
| Theater Lieve Vrouw | Theater Lieve Vrouw | Netherlands, Amersfoort, Lieve Vrouwestraat 13 | 2000-04-15 | -- | 2000–2008 | 3 | |
| Théâtre de l'Orme | Théâtre de l'Orme | France, Paris, 16 Rue de l'Orme | 2006-02-24 | 2006-06-25 | 2006 | 1 | |
| Teatro Domus | Teatro Domus | Brazil, São Paulo | 1985-08-20 | -- | 1985 | 1 | |
| Teatro Politeama Duca di Genova | Teatro Politeama Duca di Genova | Italy, La Spezia | 1899-05-03 | -- | 1899 | 1 | |
| Teatr Kameralny | Teatr Kameralny | Poland, Warsaw, Foksal 16 | 1958-05-03 | -- | 1958 | 1 | |
| Theresa L. Kaufmann Auditorium | Theresa L. Kaufmann Auditorium | United States of America, New York, Lexington Avenue | 1948-02-14 | 1949-12-04 | 1948–1949 | 2 | |
| Teatro Municipale | Teatro Municipale | Italy, Piacenza, Via Giuseppe Verdi, 41 | 1999-11-12 | 2005-02-09 | 1999–2005 | 2 | |
| Theatre de la Tempete | Théâtre de la Tempête | France, Paris, route du Champ de manoeuvre | 1972-05-31 | 2024-03-31 | 1972–2024 | 4 | |
| Teatro di Treviglio | Teatro di Treviglio | Italy, Treviglio | 1893-10-17 | -- | 1893 | 1 | |
| Théâtre National de Bretagne | Théâtre National de Bretagne | France, Rennes, 1 Rue Saint-Hélier | 1997-05-28 | 2014-03-22 | 1997–2014 | 8 | |
| The Magenta Giraffe Theatre Company | The Magenta Giraffe Theatre Company | United States of America, Detroit, 1301 W Lafayette Blvd | 2011-09-16 | 2011-10-08 | 2011 | 1 | |
| The Black Swan | The Black Swan | United States of America, Ashland, Corner of E Main And Pioneer St | 1999-03-31 | 1999-10-31 | 1999 | 1 | |
| Theater am Domhof | Theater am Domhof | Germany, Osnabrück, Domhof 10-11 | 1926-11-21 | -- | 1926–2014 | 4 | |
| The Pit (Barbican Centre) | The Pit (Barbican Centre) | England, London, Silk St | 1982-05-12 | 2009-05-16 | 1982–2009 | 7 | |
| Teatro del Siscar de Santomera | Teatro del Siscar de Santomera | Spain, El Siscar, Murcia, Calle Antonio Machado, 1 | 2010-04-15 | -- | 2010 | 1 | |
| Teatro Metastasio | Teatro Metastasio | Italy, Prato, Via Cairoli n.59 | 1977-01-05 | 2024-03-24 | 1977–2024 | 6 | |
| Teatro dei Filodrammatici | Teatro dei Filodrammatici | Italy, Milan, Piazza Paolo Ferrari, 6, 20121 | 1891-02-09 | 2022-11-04 | 1891–2022 | 12 | |
| Theater at the 14th Street Y | Theater at the 14th Street Y | United States of America, New York, 344 E 14th St, NY 10003 | 2017-07-08 | 2017-07-10 | 2017 | 1 | |
| Theater Putbus | Theater Putbus | Germany, Putbus, Markt 13 | 2015-03-13 | 2015-06-20 | 2015–2017 | 2 | |
| Theatre Royal Stratford East | Theatre Royal Stratford East | England, London, Gerry Raffles Square | 1954-06-01 | -- | 1954 | 1 | |
| Tamási Áron Színház | Tamási Áron Színház | Romania, Sfântu Gheorghe, Strada Libertății 1 | 1972-05-05 | 1999-12-12 | 1972–1999 | 3 | |
| Tērbatā | Tērbatā | Estonia, Tartu | 1918-09-10 | -- | 1918 | 1 | |
| Torsby | Torsby | Sweden, Torsby | 1993-10-03 | -- | 1993 | 1 | |
| Terråk Ungdomsskole | Terråk Ungdomsskole | Norway, Terråk | 1983-10-17 | -- | 1983 | 1 | |
| Teatr Śląski im. Stanisława Wyspiańskiego | Teatr Śląski im. Stanisława Wyspiańskiego | Poland, Katowice, Rynek 10 | 1954-11-27 | -- | 1954–2010 | 3 | |
| 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 | |
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