| Teatro Mercadante | Teatro Mercadante | Italy, Naples, P.za Municipio, 80133 | 1900-11-10 | 2022-11-14 | 1900–2022 | 7 | |
| Théâtre Pitoëff | Théâtre Pitoëff | Switzerland, 1205 Genève, Rue de Carouge 52 | 1920-02-05 | -- | 1920 | 1 | |
| Tingvoll barne- og ungdomsskole | Tingvoll barne- og ungdomsskole | Norway, Tingvoll, Skoleveien 28 | 2006-09-11 | -- | 2006 | 1 | |
| Teatrul Naţional Târgu Mureș | Teatrul Naţional Târgu Mureș | Romania, Târgu Mureş, Piața Teatrului, nr. 1 | 1973-01-27 | 2019-01-25 | 1973–2022 | 9 | |
| Thiva | Thiva | Greece, Thiva | 1981-11-15 | -- | 1981 | 1 | |
| Turnhalle | Turnhalle | Switzerland, Klingnau | 1991-08-21 | -- | 1991 | 1 | |
| Teatro Famiglia | Teatro Famiglia | Italy, Bresso, via Bologna 38 | 2001-03-02 | -- | 2001 | 1 | |
| Theater des Kulturzentrums KUBIZ | Theater des Kulturzentrums KUBIZ | Germany, Unterhaching, Jahnstraße 1 | 2006-09-16 | -- | 2006 | 1 | |
| Theatre Royal | Theatre Royal | Australia, Hobart, 29 Campbell Street | 1891-10-14 | 1971-04-24 | 1891–1971 | 3 | |
| Theatro Vretania | Theatro Vretania (Theatre Bretagne) | Greece, Athens | 1943-01-27 | 1943-02-16 | 1943 | 1 | |
| Technical School Auditorium | Technical School Auditorium | Canada, Calgary | 1959-04-02 | 1959-04-04 | 1959 | 1 | |
| Teatro Strehler | Teatro Strehler | Italy, Milan, Largo Paolo Grassi, 2 | 2003-05-06 | 2014-04-06 | 2003–2014 | 2 | |
| Teatro di Locarno | Teatro di Locarno | Switzerland, Locarno, Via della Pace 5 | 2006-04-04 | 2013-11-13 | 2006–2013 | 3 | |
| Teatrul Dramatic Fani Tardini | Teatrul Dramatic Fani Tardini | Romania, Galaţi, Str. Domnească, nr. 59 | 1959-01-20 | -- | 1959 | 1 | |
| Thália Színház | Thália Színház | Slovak Republic, Košice, Mojmírova 1. | 1982-12-16 | -- | 1982 | 1 | |
| Théâtre Les Gemaux | Théâtre Les Gemaux | France, Sceaux, 49 Avenue Georges Clemenceau, 92330 Sceaux | 2002-10-18 | 2012-11-25 | 2002–2012 | 2 | |
| Teatro Presidente Alvear | Teatro Presidente Alvear | Argentina, Autónoma de Buenos Aires, Av. Corrientes 1659, C1042 San Nicolas, Cdad | 2024-09-27 | 2024-10-27 | 2024 | 1 | |
| Teikokuza Theatre | Teikokuza Theatre | Japan, Osaka | 1911-10-06 | -- | 1911 | 1 | |
| Teatro Accademia | Teatro Accademia | Italy, Conegliano, Piazza Giovanni Battista Cima, 5, 31015 Conegliano | 2012-01-18 | -- | 2012–2019 | 2 | |
| Teatr Ludowy Tadeusza Pilarskiego | Teatr Ludowy Tadeusza Pilarskiego | Poland, Przemyśl | 1907-03-01 | -- | 1907 | 1 | |
| Teatro Leopoldo Fróes | Teatro Leopoldo Fróes | Brazil, São Paulo, Praça da República | 1955-04-20 | 1955-04-24 | 1955–1956 | 2 | |
| Tertulia Martinense | Tertulia Martinense | Spain, Barcelona | 1904-05-22 | -- | 1904 | 1 | |
| Teatr im. Adama Mickiewicza | Teatr im. Adama Mickiewicza | Poland, Częstochowa | 1969-01-24 | -- | 1969 | 1 | |
| Théâtre de l'Avenue | Théâtre de l'Avenue | France, Paris, 5 rue du Colisée | 1931-11-17 | -- | 1931 | 1 | |
| Tromsø | Tromsø | Norway, Tromsø | 1898-01-10 | 1999-06-19 | 1898–2015 | 9 | |
| Teatr Comoedia (MTD) | Teatr Comoedia (MTD) | Poland, Warsaw | 1946-03-11 | -- | 1946 | 1 | |
| Theatro Kampereio | Theatro Kampereio (Caberio theater) | Greece, Ioannina | 1984-02-03 | 2012-02-26 | 1984–2012 | 3 | |
| Teatrul Sică Alexandrescu Brasov | Teatrul Sică Alexandrescu Brasov | Romania, Braşov, Piaţa Teatrului Nr. 1 | 1967-02-18 | -- | 1967–2010 | 2 | |
| Teatro-Cine de Pombal | Teatro-Cine de Pombal | Portugal, Pombal, Praça Manuel Henriques Júnior | 2009-08-08 | -- | 2009 | 1 | |
| Teatro Comunale, Belluno | Teatro Comunale, Belluno | Italy, Belluno, Piazza dei Martiri, Belluno, Italia | 1976-11-12 | 2011-11-06 | 1976–2011 | 2 | |
| Théâtre du Rond-Point | Théâtre du Rond-Point | France, 75008 Paris, 2bis av Franklin D. Roosevelt | 2025-01-23 | 2025-02-02 | 2025 | 2 | |
| Teatro Curvo Semedo | Teatro Curvo Semedo | Portugal, Montemor-o-Novo, Rua João Luis Ricardo | 2007-04-14 | -- | 2007 | 1 | |
| Theatro Enten | Theatro Enten | Greece, Thessaloniki | 1914-01-06 | -- | 1914 | 1 | |
| Teatro Comunale Walter Chiari | Teatro Comunale Walter Chiari | Italy, Cervia, v. XX Settembre 125, 48015 | 2012-01-14 | 2012-01-15 | 2012 | 4 | |
| Tibro | Tibro | Sweden, Tibro | 1989-11-18 | 1989-11-18 | 1989 | 1 | |
| Théâtre Réjane | Théâtre Réjane | France, Paris, 15 rue Blanche | 1908-02-13 | -- | 1908 | 1 | |
| Teatro Palenque | Teatro Palenque | Spain, Talavera de la Reina, Calle de Palenque, 0 | 2010-02-21 | -- | 2010 | 1 | |
| Teatre Principal de Vic | Teatre Principal de Vic | Spain, Vic | 1914-05-31 | -- | 1914–1915 | 2 | |
| Topoľčany | Topoľčany | Slovak Republic, Topoľčany | 1912-04-25 | -- | 1912 | 1 | |
| Theatre of the Riverside Church (The Riverside Theatre) | Theatre of the Riverside Church (The Riverside Theatre) | United States of America, New York, 91 Claremont Avenue | 2002-11-02 | 2002-11-16 | 2002 | 1 | |
| Theater an der Wien | Theater an der Wien | Austria, Vienna, Linke Wienzeile 6 | 1905-05-30 | 2017-04-04 | 1905–2017 | 15 | |
| Teatro Tarambana | Teatro Tarambana | Spain, Madrid, Dolores Armengot, 31 | 2008-11-05 | 2008-11-06 | 2008 | 1 | |
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