| Tonstad | Tonstad | Norway, Tonstad | 1991-09-25 | -- | 1991–2004 | 3 | |
| Theatre Royal | Theatre Royal | England, Nottingham, Theatre Square | 2018-02-05 | 2018-02-10 | 2018 | 1 | |
| Teatro de gli Incamminati | Teatro de gli Incamminati | Italy, Monza | 1987-03-06 | -- | 1987 | 1 | |
| The Grand | The Grand | United States, Atlanta | 1906-12-27 | 1906-12-27 | 1906 | 1 | |
| Theater aan het Spui | Theater aan het Spui | Netherlands, The Hague, Spui 187 | 1996-11-29 | 2015-09-05 | 1996–2016 | 9 | |
| Theatro Pallas | Theatro Pallas | Greece, Thessaloniki | 1939-05-08 | 1940-05-31 | 1939–1940 | 3 | |
| Theatro Athina | Theatro Athina | Greece, Athina, Derigni 10 | 1979-11-02 | 1979-12-16 | 1979 | 1 | |
| Teatro Taib | Teatro Taib | Brazil, São Paulo | 1988-03- | -- | 1988 | 1 | |
| Târgu Secuiesc | Târgu Secuiesc | Romania, Târgu Secuiesc | 1890-05-29 | -- | 1890 | 1 | |
| Théâtre de la Ville Aoste | Théâtre de la Ville Aoste | Italy, Aosta, Rue Xavier de Maistre, 21, | 2004-03-22 | -- | 2004 | 1 | |
| Teatro Itália | Teatro Itália | Brazil, São Paulo, Avenida Ipiranga, 344, Repubblica | 1971-04-05 | -- | 1971 | 1 | |
| Trondhjems Katedralskole | Trondhjems Katedralskole | Norway, Trondheim | 1973-10-17 | -- | 1973 | 1 | |
| Theater Westend | Theater Westend | Switzerland, Zürich, Hardturmstrasse 116 | 1990-09-02 | 1990-09-09 | 1990 | 1 | |
| Teatro de Estudantes | I Festival de Teatro de Estudantes | Brazil, Recife | 1958-03-24 | -- | 1958 | 1 | |
| Teatro Il Rivellino | Teatro Il Rivellino | Italy, Tuscania, Piazza F. Basile 5, Provincia di Viterbo | 2008-02-01 | -- | 2008 | 1 | |
| Theatre Royal | Theatre Royal | Ireland, Dublin | 1903-06-18 | -- | 1903–1917 | 2 | |
| Teatr Bagatela | Teatr Bagatela | Poland, Kraków, ul. Karmelicka 6 | 1922-01-16 | -- | 1922–1925 | 4 | |
| Theater De Brakke Grond | Theater De Brakke Grond | Netherlands, Amsterdam, Nes 45 | 1973-04-13 | 2014-04-12 | 1973–2014 | 4 | |
| 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 | |
| Theater Mausefalle Solothurn | Theater Mausefalle Solothurn | Switzerland, Zuchwil, Allmendweg 8 | 2007-05-18 | 2007-05-30 | 2007 | 1 | |
| Tveten ungdomsskole | Tveten ungdomsskole | Norway, Porsgrunn | 2005-10-20 | 2005-10-21 | 2005–2006 | 3 | |
| The Black Swan | The Black Swan | United States, Ashland, Corner of E Main And Pioneer St | 1999-03-31 | 1999-10-31 | 1999 | 1 | |
| The Long Wharf Theatre | The Long Wharf Theatre | United States, New Haven, 222 Sargent Dr | 1969-05-02 | 2010-05-23 | 1969–2010 | 5 | |
| Te'atron ha-Kameri shel Tel-Aviv (Cameri Theatre) | Te'atron ha-Kameri shel Tel-Aviv (Cameri Theatre) | Israel, Tel Aviv, Da Vinci, HaHashmona'im 93 | 1959-02-15 | 2017-12-28 | 1959–2017 | 9 | |
| Teatro Circo Príncipe Real | Teatro Circo Príncipe Real | Portugal, Coimbra | 1899-02-20 | 1899-04-23 | 1899 | 2 | |
| Theater Rendsburg | Theater Rendsburg | Germany, Rendsburg, Hans-Heinrich-Beisenkötter-Platz 1 | 1976-10-09 | -- | 1976–1995 | 2 | |
| Theater de Kunstgreep | Theater de Kunstgreep | Netherlands, Oostzaan, Kerkbuurt 4, | 2012-03-08 | -- | 2012 | 1 | |
| Teatr Nowy | Teatr Nowy | Poland, Kraków, Gazowa 21 | 2009-01-16 | -- | 2009 | 1 | |
| Teatr Ludowy Tadeusza Pilarskiego | Teatr Ludowy Tadeusza Pilarskiego | Poland, Przemyśl | 1907-03-01 | -- | 1907 | 1 | |
| Theatre Royal Stratford East | Theatre Royal Stratford East | England, London, Gerry Raffles Square | 1954-06-01 | -- | 1954 | 1 | |
| Theatre Calgary | Theatre Calgary | Canada, Calgary, 205 - 8th Ave. S.E | -- | -- | | | |
| Théâtre National de Toulouse i Toulouse Cedex | Théâtre National de Toulouse i Toulouse Cedex | France, Toulouse Cedex, 1 Rue Pierre Baudis | 2003-12-05 | 2011-02-19 | 2003–2011 | 2 | |
| Theater Stok | Theater Stok | Switzerland, Zürich, Hirschengraben 42 | 2009-11-25 | 2009-12-06 | 2009 | 1 | |
| Trondheim Torg | Trondheim Torg | Norway, Trondheim, Kongens gate 9 | 2004-11-06 | 2004-11-13 | 2004 | 1 | |
| Theatro Polytheama | Theatro Polytheama | Greece, Pireus | 1898-08-16 | 1913-02-14 | 1898–1913 | 3 | |
| Târgu Ocna | Târgu Ocna | Romania, Târgu Ocna | -- | -- | | | |
| Theatro Kafalos eller Dimotiko Kefaneio Argostoliou | Theatro Kafalos eller Dimotiko Kefaneio Argostoliou | Greece, Argostoliou | 1912-01- | -- | 1912 | 1 | |
| Teatro Italia | Teatro Italia | Italy, Torino | 1982-02-18 | 1982-02-21 | 1982 | 1 | |
| Theater Monty | Theater Monty | Belgium, Antwerpen, Montignystraat 3 | 1993-05-19 | 2014-03-22 | 1993–2014 | 4 | |
| Teatr Letni Zofii Broniec | Teatr Letni Zofii Broniec | Poland, Lublin | 1887-08-21 | 1887-08-23 | 1887 | 1 | |
| Turteatern | Turteatern | Sweden, Johanneshov, Lågskärsvägen 13 | 2018-11-29 | 2018-12-31 | 2018 | 1 | |
| Trenčín | Trenčín | Slovak Republic, Trenčín | 1912-05-22 | -- | 1912 | 1 | |
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