| Teatrul Dramatic I.D.Sîrbu Petrosani | Teatrul Dramatic I.D.Sîrbu Petrosani | Romania, Petroşani, Mihai Viteazu street, nr. 2 | 1964-02-22 | 2017-01-28 | 1964–2016 | 4 | |
| Thália Színház | Thália Színház | Hungary, Budapest, Nagymező utca 22-24. | 2005-10-14 | 2012-10-14 | 2005–2012 | 4 | |
| Tynset | Tynset | Norway, Tynset | 1991-10-15 | -- | 1991–2005 | 4 | |
| Teatro Arriaga Antzokia | Teatro Arriaga Antzokia | Spain, Bilbao, Plaza Arriaga, 1 | 2011-03-03 | 2012-03-17 | 2011–2012 | 4 | |
| Teatro Nuovo Giovanni | Teatro Nuovo Giovanni da Udine | Italy, Udine UD, Via Trento, 4 | 1998-05-21 | 2022-03-03 | 1998–2022 | 4 | |
| Teatro Garcia de Resende | Teatro Garcia de Resende | Portugal, Évora | 1987-11-19 | 2007-04-07 | 1987–2007 | 4 | |
| Tivoli Theater | Tivoli Theater | Norway, Kristiania (Oslo) | 1891-09-17 | 1897-01-16 | 1891–1901 | 4 | |
| Teater Mungo Park | Teater Mungo Park | Denmark, Allerod, Fritz Hansens Vej 23 | 2002-01-10 | 2015-10-17 | 2002–2015 | 4 | |
| Teatro Cressoni | Teatro Cressoni | Italy, Como, Via Armando Diaz | 1892-11-19 | 1892-11-28 | 1892–1906 | 4 | |
| Théâtre de la Renaissance | Théâtre de la Renaissance | France, Paris, 20 Boulevard Saint-Martin | 1898-03-29 | 1899-12-27 | 1898–1899 | 4 | |
| Theatro Nea Skini | Theatro Nea Skini | Greece, Athens, Agiou Konstantinou 22 | 1903-06-12 | 2018-02-04 | 1903–2017 | 4 | |
| Teatr Dramatyczny im. Aleksandra Węgierki | Teatr Dramatyczny im. Aleksandra Węgierki | Poland, Białystok, Elektryczna 12 | 1961-12-09 | -- | 1961–1980 | 4 | |
| Tingvoll Gymnas | Tingvoll Gymnas | Norway, Tingvold | 1969-09-16 | -- | 1969–1990 | 4 | |
| Teatro Litta | Teatro Litta | Italy, Milan, Corso Magenta, 24 | 2001-02-07 | 2006-04-09 | 2001–2006 | 4 | |
| Théâtre de l’Archipel | Théâtre de l’Archipel | France, Perpignan, Avenue Général Leclerc | 2013-01-19 | 2020-10-15 | 2013–2020 | 4 | |
| Theater Bonn | Theater Bonn | Germany, Bonn, Am Boeselagerhof 1 | 1976-12-04 | 2012-10-07 | 1976–2012 | 4 | |
| Théâtre National de Marseille, La Criée | Théâtre National de Marseille, La Criée | France, Marseille, 30 Quai Rive Neuve | 1980-03-18 | 2020-01-25 | 1980–2020 | 4 | |
| Theater in der Stadthalle | Theater in der Stadthalle | Germany, Neumünster, Kleinflecken 1 | 2001-03-08 | -- | 2001–2013 | 4 | |
| Theatro Sporting Club | Theatro Sporting Club | Turkey, Izmir | 1909-03-03 | -- | 1909–1920 | 4 | |
| Teatro Duse | Teatro Duse | Italy, Genova | 1960-10-28 | 2001-03-25 | 1960–2001 | 4 | |
| Theater De Brakke Grond | Theater De Brakke Grond | Netherlands, Amsterdam, Nes 45 | 1973-04-13 | 2014-04-12 | 1973–2014 | 4 | |
| Teatrul Mic | Teatrul Mic | Romania, Bucureşti, Str. Constantin Mille, Nr. 16 | 1955-12-13 | 1955-12-30 | 1955–1994 | 4 | |
| Teatro Biondo Stabile di Palermo | Teatro Biondo Stabile di Palermo | Italy, Palermo, Via Roma, 248 | 1999-02-25 | 2006-03-11 | 1999–2006 | 4 | |
| Teaterloftet | Teaterloftet | Norway, Trondheim | 1983-01-07 | -- | 1983–1992 | 4 | |
| Theatre Royal | Theatre Royal | England, Exeter | 1910-11-28 | 1910-12-02 | 1910 | 4 | |
| Teatr Polski | Teatr Polski | Poland, Bielsko-Biala, 1 Maja 1 | 1958-10-04 | -- | 1958–1990 | 4 | |
| Theatret i Moss | Theatret i Moss | Norway, Moss | 1871-09-28 | -- | 1871–1907 | 4 | |
| Târgu Mureș | Târgu Mureș | Romania, Târgu Mureș | 1900-07-10 | -- | 1900–1938 | 4 | |
| Teatro Comunale di Ferrara | Teatro Comunale di Ferrara | Italy, Ferrara, CORSO MARTIRI DELLA LIBERTÀ 5 | 1980-10-29 | 2017-01-12 | 1980–2017 | 4 | |
| Turku (Åbo) | Turku (Åbo) | Finland, Turku (Åbo) | 1878-10-16 | 1893-09-14 | 1878–1893 | 4 | |
| The Shakespeare Theatre | The Shakespeare Theatre | United States, Washington D.C., 450 7th St NW | 1998-01-20 | 2006-10-22 | 1998–2006 | 4 | |
| Toronto | Toronto | Canada, Toronto | 1908-04- | 2020-05-17 | 1908–2020 | 4 | |
| The Duquesne | The Duquesne | United States, Pittsburgh | 1895-10- | 1908-02-10 | 1895–1908 | 4 | |
| Theatro Neapoleos | Theatro Neapoleos | Greece, Athens | 1899-07-20 | 1904-07-26 | 1899–1904 | 4 | |
| Theater Wolfsburg | Theater Wolfsburg | Germany, Wolfsburg, Klieverhagen 50 | 1980-02-09 | 1999-01-08 | 1980–2017 | 4 | |
| Teatr Bagatela | Teatr Bagatela | Poland, Kraków, ul. Karmelicka 6 | 1922-01-16 | -- | 1922–1925 | 4 | |
| Theatro Pantheon | Theatro Pantheon | Greece, Thessaloniki | 1924-09-18 | 1924-10-05 | 1924–1925 | 4 | |
| Theatro Technis | Theatro Technis | England, London, 26 Crowndale Rd | 2004-10-19 | 2018-12-19 | 2004–2017 | 4 | |
| Teatro Guaíra | Teatro Guaíra | Brazil, Curitiba, R. XV de Novembro, 971 | 1966-11-01 | -- | 1966–1989 | 4 | |
| Thionville | NEST - CDN transfrontalier de Thionville-Grand Est | France, Thionville, 15 Route de Manom | 1991-11-15 | 2018-06-08 | 1991–2018 | 4 | |
| Théâtre National de Nice | Théâtre National de Nice | France, Nice, Promenade des arts | 1990-01-10 | 2018-01-13 | 1990–2018 | 4 | |
| Theater im Pfalzbau | Theater im Pfalzbau | Germany, Ludwigshafen, Berliner Straße 30 | 1980-01-06 | 2004-03-17 | 1980–2012 | 4 | |
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