| Throndhjems Theater | Throndhjems Theater | Norway, Trondheim, Prinsens Gate 20 | 1861-11-17 | 1863-11-04 | 1861–1863 | 2 | 1 |
| Toronto Free Theatre | Toronto Free Theatre | Canada, Toronto | 1972-11-10 | -- | 1972–1973 | 2 | |
| Teatro Solís | Teatro Solís | Uruguay, Montevideo, Ciudad Vieja | 1898-09-27 | 2019-12- | 1898–2019 | 8 | |
| Theatre Severn | Theatre Severn | England, Shrewsbury, Frankwell Quay | 2014-02-12 | 2014-02-13 | 2014 | 1 | |
| Théâtre National de Nice | Théâtre National de Nice | France, Nice, Promenade des arts | 1990-01-10 | 2018-01-13 | 1990–2018 | 4 | |
| Theater Palme | Theater Palme | Russia, St. Petersburg | 1902-01-24 | -- | 1902 | 2 | |
| Theatro Lefkou Pyrgou | Theatro Lefkou Pyrgou (White Tower Teater) | Greece, Thessaloniki, Thessaloniki | 1914-01-20 | -- | 1914–1918 | 2 | |
| Teatar Anton Panov | Teatar Anton Panov | Macedonia, Strumica, Ulica Mosha Pijade 1 | 1983-10-08 | 2018-05-19 | 1983–2017 | 2 | |
| Teatro Carrión | Teatro Carrión | Spain, Valladolid, Calle Montero Calvo, 2 | 1975-09- | -- | 1975 | 1 | |
| The NEW Gremlin Theatre | The NEW Gremlin Theatre | United States of America, Saint Paul, University Avenue | 2009-03-13 | 2009-03-29 | 2009 | 1 | |
| Teatro Gobetti | Teatro Gobetti | Italy, Torino, Via Gioacchino Rossini, 8 | 1975-02-07 | 1975-05-14 | 1975–1981 | 4 | |
| Theatro Municipal de São Paulo | Theatro Municipal de São Paulo | Brazil, Republica, Praça Ramos de Azevedo, s/n | 1991-10-08 | 1991-10-10 | 1991 | 1 | |
| Teatro Nuovo | Teatro Nuovo | Italy, Verona, Piazza Viviani 10 | 1894-02-13 | 2013-12-01 | 1894–2013 | 3 | |
| Teatro Caporali | Teatro Caporali | Italy, Panicale, Via Cesare Caporali, 16 | 2000-01-21 | -- | 2000 | 1 | |
| Theater in Dornbirn | Theater in Dornbirn | Austria, Dornbirn | 1908-05-21 | -- | 1908–1914 | 5 | |
| Teatro Ruth Escobar | Teatro Ruth Escobar | Brazil, Sao Paolo, Rua dos Ingleses, 209 - | 2007-01-12 | 2007-02-18 | 2007 | 1 | |
| Theater & Congres Orpheus | Theater & Congres Orpheus | Netherlands, Apeldoorn, Churchillplein 1 | 2008-03-31 | 2008-04-01 | 2008–2017 | 2 | |
| Theatro Dionysia | Theatro Dionysia (Theater Dionysia) | Greece, Athens | 1926-01-05 | 1984-04-16 | 1926–1983 | 2 | |
| The Cockpit Theatre | The Cockpit Theatre | England, London, Gateforth St | 2012-04-17 | 2018-04-28 | 2012–2018 | 3 | |
| Theatre Royal | Theatre Royal | England, Bath, Sawclose | 1909-05-03 | 2021-05-22 | 1909–2021 | 6 | |
| Teatre de Salt | Teatre de Salt | Spain, Salt, Carrer de Sant Jaume, 2 | 2009-10-16 | 2009-10-18 | 2009 | 2 | |
| Theater Greifswald | Theater Greifswald | Germany, Greifswald, Anklamer Straße 106 | 1943-12-11 | 2015-06-20 | 1943–2017 | 11 | |
| Theatret i Nykjøbing | Theatret i Nykjøbing | Denmark, Nykøbing | 1884-02-17 | -- | 1884–1908 | 8 | |
| Théâtre Quartier Libre | Théâtre Quartier Libre | France, Ancenis, Allée Vicomte de Rohan | 2003-10-11 | -- | 2003 | 1 | |
| Toržok | Toržok | Russia, Toržok | -- | -- | | | |
| Teatro Libero | Teatro Libero | Italy, Milan, Via Savona, 10, 20144 | 2006-07-04 | 2019-12-20 | 2006–2019 | 4 | |
| Teatro Comunale, Belluno | Teatro Comunale, Belluno | Italy, Belluno, Piazza dei Martiri, Belluno, Italia | 1976-11-12 | 2011-11-06 | 1976–2011 | 2 | |
| Teatrul National Bucuresti | Teatrul National Bucuresti | Romania, Bucharest, Bulevardul Nicolae Bălcescu, 2 | 1895-12-09 | 2024-01-28 | 1895–2024 | 47 | |
| Teatr Nowy | Teatr Nowy | Poland, Zabrze, Plac Teatralny 1 | 1979-06-17 | -- | 1979 | 1 | |
| Teatr Miejski w Płocku | Teatr Miejski w Płocku | Poland, Płock | 1924-12-04 | -- | 1924 | 1 | |
| Theatre 14 Smith College | Theatre 14 Smith College | United States of America, Northampton | 2002-10-18 | 2002-10-26 | 2002 | 1 | |
| The Kramar Grand | The Kramar Grand | United States of America, Elwood | 1907-09-20 | 1907-09-20 | 1907 | 1 | |
| Teatr Montownia | Teatr Montownia | Poland, Warsaw, Krakowskie Przedmieście 13 | 2005-12-15 | 2006-09-24 | 2005 | 1 | |
| Teatro Mayor Julio Mario Santodomingo | Teatro Mayor Julio Mario Santodomingo | Colombia, Bogotá, Diagonal 170 | 2012-03-29 | 2018-04-01 | 2012–2018 | 2 | |
| Teatro Nuovo | Teatro Nuovo | Italy, Milan, Piazza San Babila | 1940-10-08 | 1993-03-31 | 1940–1993 | 4 | |
| Théatre de la Vie | Théatre de la Vie | Belgium, Brussels, Rue traversière 45 | 2017-01-17 | 2017-01-28 | 2017 | 1 | |
| Teatro Principal | Teatro Principal de Requena | Spain, Requena, c/ Las Cruces 5 | 2005-02-26 | 2005-10-22 | 2005 | 2 | |
| Teatret i Asnæs | Teatret i Asnæs | Denmark, Asnæs | 1907-12-05 | -- | 1907 | 1 | |
| Theatro Technon | Theatro Technon | Greece, Larisa, Pineiou 9 | 2004-12-17 | 2005-01-30 | 2004 | 1 | |
| Tampereen Teatteri | Tampereen Teatteri | Finland, Tampere, 2, Keskustori | 1904-10-14 | 2003-05-16 | 1904–2002 | 16 | |
| Theater in der Stresemannstrasse | Theater in der Stresemannstrasse | Germany, Berlin, Stresemannstraße 29 | 1933-10-10 | -- | 1933 | 1 | |
| Trenčín | Trenčín | Slovak Republic, Trenčín | 1912-05-22 | -- | 1912 | 1 | |
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