| Theaterhaus am Alten Markt | Theaterhaus am Alten Markt | Germany, Potsdam, Am Alten Markt | 2006-03-17 | 2007-06-16 | 2006 | 2 | |
| Teatre Lliure YouTube channel | Teatre Lliure YouTube channel | Spain | 2020-04-23 | 2020-04-26 | 2020 | 1 | |
| Teatro Calima | Teatro Calima | Colombia, Santiago de Cali | 2009-03-06 | 2009-03-07 | 2009 | 1 | |
| Teatro Infanta Beatriz | Teatro Infanta Beatriz | Spain, Madrid, Calle de Hermosilla, 15 | 1971-09-24 | 1972-02-20 | 1971 | 1 | |
| Trollhättan | Trollhättan | Sweden, Trollhättan | 1991-04-04 | 1991-04-04 | 1991 | 1 | |
| Teatr Polski im. Arnolda Szyfmana | Teatr Polski im. Arnolda Szyfmana | Poland, Warszawa, ul. Kazimierza Karasia 2 | 2017-10-06 | -- | 2017 | 1 | |
| Timrå | Timrå | Sweden, Timrå | 1989-10-04 | 1989-10-04 | 1989 | 1 | |
| TU-Nantes | TU-Nantes | France, Nantes, Chemin de la Censive du Tertre | 2012-02-28 | 2018-02-23 | 2012–2018 | 2 | |
| Theater der Stadt Gütersloh | Theater der Stadt Gütersloh | Germany, Gütersloh, Barkeystraße 15 | 2002-03-04 | -- | 2002 | 1 | |
| Teatro Principal | Teatro Principal | Spain, Santiago de Compostela, Rúa Nova, 22 | 2008-03-12 | 2008-03-13 | 2008 | 1 | |
| Taastrup Teater | Taastrup Teater | Denmark, 2630 Taastrup, Kjeld Abells Plads 1 | 2002-09-29 | -- | 2002–2006 | 2 | |
| Tou Scene | Tou Scene | Norway, Stavanger, Kvitsøygata 25 | 2007-03-09 | 2007-03-11 | 2007 | 1 | |
| Teatro del Notariado | Teatro del Notariado | Uruguay, Montevideo, Guayabo 1729 | 1980-09-25 | -- | 1980–2001 | 2 | |
| Transteatral | Transteatral | Czech Republic, Prague, V Jámě 1598/4 | 2010-06-06 | -- | 2010 | 1 | |
| Tetsudokai Auditorium | Tetsudokai Auditorium | Japan, Tokyo | 1921-11-04 | 1921-11-06 | 1921 | 1 | |
| Teatr Komi | Teatr Komi | Russia, Syktyvkar, Syktyvkar | 1950-02- | -- | 1950 | 1 | |
| Théâtre du Chaudron | Théâtre du Chaudron | France, Paris, Route du Champ de Manœuvre | 2008-02-01 | 2008-02-12 | 2008 | 1 | |
| Theater am Stadtpark | Theater am Stadtpark | Austria, Graz, Stadtpark 1 | 1892-04-23 | 1895-05-24 | 1892–1897 | 3 | |
| Teatrul "Tony Bulandra" | Teatrul "Tony Bulandra" | Romania, Târgovişte, Bulevardul Regele Carol I nr. 43 Târgoviște | -- | -- | 2016–2019 | 5 | |
| Teatro Municipal Sá de Miranda | Teatro Municipal Sá de Miranda | Portugal, Viana do Castelo, R. de Sá de Miranda | 1997-11-07 | 1998-01-25 | 1997 | 2 | |
| Teater Manu | Teater Manu | Norway, Oslo, Schleppegrells gate 32 | 2006-03-16 | 2006-04-23 | 2006 | 1 | |
| Teatrul Figura Studio (Figura Stúdió Színház) | Teatrul Figura Studio (Figura Stúdió Színház) | Romania, Gheorgheni, Bulevardul Frăției nr. 9 | 2018-09-28 | -- | 2018 | 1 | |
| Teatry Dramatyczne | Teatry Dramatyczne | Poland, Wrocław | 1957-03-30 | -- | 1957 | 1 | |
| Teatr Kononova | Teatr Kononova (Kononov Theatre) | Russia, St. Petersburg, Bol'shaya Morskaya Ulitsa, 16 | 1883-01-25 | 1897-05-09 | 1883–1897 | 2 | |
| Teatrul de Vest | Teatrul de Vest | Romania, Reșița, Piața 1 Decembrie, no. 6 | 2016-02-21 | -- | 2016 | 1 | |
| Teatro Auditorio de Cuenca | Teatro Auditorio de Cuenca | Spain, Cuenca, Paseo del Huécar, S/N | 2005-10-27 | 2005-10-27 | 2005 | 1 | |
| Tomaszów | Tomaszów | Poland, Tomaszów | 1908-10- | -- | 1908 | 1 | |
| Teatro da Graça | Teatro da Graça | Portugal, Lisbon | 1993-11-18 | 1994-01-16 | 1993 | 1 | |
| Théâtre de Chartres | Théâtre de Chartres | France, Chartres, Place de Ravenne | 2005-02-24 | 2005-02-25 | 2005 | 1 | |
| Theater im Kärntnertor | Ensemble Theater im Kärntnertor | Austria, Wien, Walfischgasse 4 | 1975-03-01 | -- | 1975 | 1 | |
| Teatro-Auditorio | Teatro-Auditorio | Spain, Pinoso, Alicante | 2010-01-22 | -- | 2010 | 1 | |
| Teatro degli Animosi | Teatro degli Animosi | Italy, Carrara MS, Piazza Cesare Battisti | 2000-01-15 | -- | 2000 | 1 | |
| Teatr im. Stefana Jaracza | Teatr im. Stefana Jaracza | Poland, Lódz | 1920-10-19 | -- | 1920–1998 | 2 | |
| The Theatre 300 | The Theatre 300 | Japan, Tokyo | 1978-07-04 | 1984-09-09 | 1978–1984 | 2 | |
| Thionville | NEST - CDN transfrontalier de Thionville-Grand Est | France, Thionville, 15 Route de Manom | 1991-11-15 | 2018-06-08 | 1991–2018 | 4 | |
| Theatro Enten | Theatro Enten | Greece, Thessaloniki | 1914-01-06 | -- | 1914 | 1 | |
| Tønsberg | Tønsberg | Norway, Tønsberg | 1889-03-21 | 1982-11-23 | 1889–1991 | 18 | |
| Theater Basel | Theater Basel | Switzerland, Basel, Elisabethenstrasse 16 | 1991-12-12 | 2017-06-22 | 1991–2017 | 13 | |
| Teatersalen | Teatersalen | Norway, Båtsfjord, Båtsfjord | -- | -- | | | |
| Tarrant County College-Theatre southeast | Tarrant County College -Theatre southeast | United States of America, Arlington, 2100 Southeast Pkwy | 2019-10-02 | 2019-10-05 | 2019 | 1 | |
| Teatrul de Stat din Arad (Teatrul Clasic Ioan Slavici ) | Teatrul de Stat din Arad (Teatrul Clasic Ioan Slavici ) | Romania, Arad, Bulevardul Revolutiei nr.103 | 1967-05-14 | -- | 1967–2016 | 7 | |
| Todd Wehr Theater, Performing Arts Center | Todd Wehr Theater, Performing Arts Center | United States of America, Milwaukee, 325 West Walnut Street | 1971-04-23 | 1987-04-05 | 1971–1987 | 2 | |
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