| Teatro Fedele Fenaroli | Teatro Fedele Fenaroli | Italy, Lanciano, Via Frentani, 6 | 2001-01-27 | -- | 2001 | 2 | |
| Teatrul Regina Maria (Opereta) | Teatrul Regina Maria (Opereta) | Romania, Bucharest | 1927-03-24 | 1940-12-06 | 1927–1940 | 2 | |
| Theatro Apollon | Theatro Apollon | Greece, Athens | 1921-10-09 | 1928-03-14 | 1921–1928 | 6 | |
| Teatre Domènech | Teatre Domènech | Spain, Rubí | 1914-08-02 | -- | 1914 | 1 | |
| The LAMDA Linbury Studio | The LAMDA Linbury Studio | England, London, 155 Talgarth Road | 2009-08-07 | 2009-08-09 | 2009 | 1 | |
| Teatrul Municipal din Baia-Mare | Teatrul Municipal din Baia-Mare | Romania, Baia-Mare, Strada Crișan, Nr. 8 | 1969-12-23 | 1970-- | 1969–2015 | 6 | |
| Trøgstad Ungdomsskole | Trøgstad Ungdomsskole | Norway, Trøgstad, Trøgstad | 2005-11-10 | -- | 2005 | 1 | |
| Theatre by the Sea | Theatre by the Sea | United States, Portsmouth, 125 Bow St | 1966-06-16 | 1966-07-03 | 1966 | 1 | |
| Teatrul Bulandra | Teatrul Bulandra | Romania, Bucureşti, Bulevardul Schitu Măgureanu nr. 1, sector 5 | 1944-04-16 | 2019-11-02 | 1944–2019 | 8 | |
| Teatar, Tetovo | National Theatre of Tetovo (Teatri I Tetovës/Народен Театар во Тетово) | Macedonia, Tetovo, Jane Sandanski 91 | 2022-10-15 | -- | 2022 | 1 | |
| Thatcher Opera House | Thatcher Opera House | United States, Logan | 1905-10-11 | 1905-10-11 | 1905 | 1 | |
| TV teatern on Swedish Radio (Sweden) | TV teatern on Swedish Radio (Sweden) | Sweden | 1961-01-27 | -- | 1961 | 1 | |
| Théâtre Réjane | Théâtre Réjane | France, Paris, 15 rue Blanche | 1908-02-13 | -- | 1908 | 1 | |
| Theater Wolfsburg | Theater Wolfsburg | Germany, Wolfsburg, Klieverhagen 50 | 1980-02-09 | 1999-01-08 | 1980–2017 | 4 | |
| Theater im Kärntnertor | Ensemble Theater im Kärntnertor | Austria, Wien, Walfischgasse 4 | 1975-03-01 | -- | 1975 | 1 | |
| Teatro Barcelona | Teatro Barcelona | Spain, Barcelona, Rambla de Cataluña / Paseo de Gracia (today Plaza de Catalunya) | 1943-11-26 | -- | 1943 | 1 | |
| Teatro Il Rivellino | Teatro Il Rivellino | Italy, Tuscania, Piazza F. Basile 5, Provincia di Viterbo | 2008-02-01 | -- | 2008 | 1 | |
| Théâtre Simone Signoret | Théâtre Simone Signoret | France, Conflans-Sainte-Honorine, 12 Rue Auguste Romagne | 2012-03-20 | -- | 2012 | 1 | |
| Théâtre Garonne | Théâtre Garonne | France, Toulouse, 1 Avenue du Château d'Eau | 2000-02-01 | 2000-02-05 | 2000 | 1 | |
| Tromstun skole | Tromstun skole | Norway, Tomasjord, Tellusveien 1 | 1975-12-04 | 1976-01-16 | 1975 | 1 | |
| Teatro Liceo Guadalajara | Teatro Liceo Guadalajara | Spain, Guadalajara, Calle del Carmen / Calle Mayor | 1963-03-09 | -- | 1963 | 1 | |
| Theater Mausefalle Solothurn | Theater Mausefalle Solothurn | Switzerland, Zuchwil, Allmendweg 8 | 2007-05-18 | 2007-05-30 | 2007 | 1 | |
| Theater auf der Werft, Papenburg | Theater auf der Werft, Papenburg | Germany, Papenburg | 2010-04-09 | -- | 2010 | 1 | |
| Theatro Diana | Theatro Diana | Greece, Athens | 1991-10-21 | 1992-04-16 | 1991 | 1 | |
| Theatre Royal | Theatre Royal | England, Nottingham, Theatre Square | 2018-02-05 | 2018-02-10 | 2018 | 1 | |
| Tivoli Theater | Tivoli Theater | Norway, Kristiania (Oslo) | 1891-09-17 | 1897-01-16 | 1891–1901 | 4 | |
| The Star | The Star | United States, Buffalo | 1907-01-14 | 1907-01-16 | 1907 | 1 | |
| Teatr Nowy | Teatr Nowy | Poland, Kraków, Gazowa 21 | 2009-01-16 | -- | 2009 | 1 | |
| Teatre Principal | Teatre Principal | Spain, Olot, Girona, Passeig d'en Blay, 5 | 2008-10-10 | -- | 2008 | 1 | |
| Teatro do Ginásio | Teatro do Ginásio | Portugal, Lisbon, Rua Nova da Trindade / Street of Mercy | 1899-- | -- | 1899 | 1 | |
| Theater De Lampegiet | Theater De Lampegiet | Netherlands, Veenendaal | 1989-02-02 | 1989-04-02 | 1989–2001 | 2 | |
| Theatro Olympia | Theatro Olympia | Greece, Chania, Crete | 1939-04-24 | 1939-04-25 | 1939 | 1 | |
| Teatro Palenque | Teatro Palenque | Spain, Talavera de la Reina, Calle de Palenque, 0 | 2010-02-21 | -- | 2010 | 1 | |
| Teatro Merkanti | Teatro Merkanti | Brazil, São Paulo | 1988-12- | -- | 1988 | 1 | |
| Trondheim Torg | Trondheim Torg | Norway, Trondheim, Kongens gate 9 | 2004-11-06 | 2004-11-13 | 2004 | 1 | |
| Théâtre Marigny | Théâtre Marigny | France, Paris, Carré Marigny | 1909-02-27 | 2003-11-09 | 1909–2003 | 3 | |
| Teatro Comunale | Teatro Comunale | Italy, Alessandria, Via Savona | 1993-03-02 | 1993-03-03 | 1993–2000 | 2 | |
| The Red Poppy Art House | The Red Poppy Art House | United States, San Francisco, 2698 Folsom St | 2009-05-24 | -- | 2009 | 1 | |
| Theater in der Josefstadt | Theater in der Josefstadt | Austria, Vienna, Josefstädter Straße 26 | 1900-07-14 | 2022-11-02 | 1900–2022 | 22 | |
| Theatre Royal | Theatre Royal | England, Portsmouth | 1897-10-29 | -- | 1897 | 1 | |
| Theater der Bergarbeiter | Theater der Bergarbeiter | Germany, Senftenberg, Theaterpassage 1 | 1987-11-06 | -- | 1987 | 1 | |
| Trondhjems Katedralskole | Trondhjems Katedralskole | Norway, Trondheim | 1973-10-17 | -- | 1973 | 1 | |
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