| Teatro del Siscar de Santomera | Teatro del Siscar de Santomera | Spain, El Siscar, Murcia, Calle Antonio Machado, 1 | 2010-04-15 | -- | 2010 | 1 | |
| Tysværtunet kulturhus | Tysværtunet kulturhus | Norway, Aksdal, Aksdalsvegen 157 | 2006-09-15 | 2015-09-24 | 2006–2017 | 6 | |
| Transteatral | Transteatral | Czech Republic, Prague, V Jámě 1598/4 | 2010-06-06 | -- | 2010 | 1 | |
| Teatro Italia | Teatro Italia | Italy, Torino | 1982-02-18 | 1982-02-21 | 1982 | 1 | |
| Theater am Franzensplatz | Theater am Franzensplatz | Austria, Graz, Franzensplatz | 1891-10-10 | 1908-11-04 | 1891–1909 | 20 | |
| Teatrul de Mişcare Studio M | Teatrul de Mişcare Studio M | Romania, Sfântu Gheorghe, Szabadság tér 1. sz. | 2016-02-16 | -- | 2016 | 1 | |
| Trinity Street Players | Trinity Street Theatre | United States, Austin, 901 Trinity Street | 2019-06-21 | 2019-07-13 | 2019 | 1 | |
| Teatrul Nottara | Teatrul Nottara | Romania, Bucureşti, Bulevardul Magheru 20 | 2006-01-30 | -- | 2006 | 1 | |
| Torvehallerne | Torvehallerne | Denmark, Vejle, Kirketorvet 10-16 | 2002-03-13 | -- | 2002–2004 | 2 | |
| Théâtre de l’Espace | Théâtre de l’Espace | France, Besançon, Place de l’Europe | 2000-03-07 | 2000-03-08 | 2000 | 1 | |
| Torsby | Torsby | Sweden, Torsby | 1993-10-03 | -- | 1993 | 1 | |
| Torvscenen | Torvscenen | Norway, Trondheim | 2006-07-27 | -- | 2006 | 1 | |
| Teatr im. Wojciecha Bogusławskiego | Teatr im. Wojciecha Bogusławskiego | Poland, Kalisz, Wojciecha Bogusławskiego 1 | 1955-09-23 | -- | 1955–1978 | 5 | |
| Thessaloniki | Thessaloniki | Greece, Thessaloniki | 1962-03-15 | 2013-10-12 | 1962–2013 | 2 | |
| Teatr im. Wandy Siemaszkowej | Teatr im. Wandy Siemaszkowej | Poland, Rzeszów, ul. Sokoła 7-9 | 2014-09-20 | 2016-10-20 | 2014–2016 | 2 | |
| Teatro Grande di Brescia | Teatro Grande di Brescia | Italy, Brescia BS, Contrada Bassiche, 32 | 1988-03-09 | -- | 1988 | 1 | |
| Teatro Circular | Teatro Circular | Uruguay, Montevideo, Av General Rondeau 1388 | 1965-06-10 | -- | 1965–1991 | 2 | |
| Teatro Goldoni | Teatro Goldoni | Italy, Livorno, Via Goldoni, 51 | 1982-11-13 | -- | 1982 | 1 | |
| Teatr Studio | Teatr Studio | Ukraine, Kiev | 1916-11-09 | 1916-11-17 | 1916–1917 | 2 | |
| Teatro-Estúdio Mário Viegas | Teatro-Estúdio Mário Viegas | Portugal, Lisbon, Largo do Picadeiro | 1998-09-10 | 2005-03-31 | 1998–2004 | 2 | |
| Théâtre Paul Eluard | Théâtre Paul Eluard | France, Choisy-le-Roi, 4 Avenue de Villeneuve Saint-Georges | 1999-02-12 | 1999-02-13 | 1999 | 1 | |
| Teatrul Naţional Iasi | Teatrul Naţional Iasi | Romania, Iaşi, Str. Agatha Bârsescu nr. 18 | 1894-04-07 | 2017-05-20 | 1894–2018 | 42 | |
| Theatro Neapoleos | Theatro Neapoleos | Greece, Athens | 1899-07-20 | 1904-07-26 | 1899–1904 | 4 | |
| Terry's Theatre | Terry's Theatre | England, London, Strand | 1891-01-27 | 1908-02-15 | 1891–1908 | 3 | |
| Temple Theater at Angelina College | Temple Theater at Angelina College | United States, Lufkin, 3500 South First Street | 2012-02-16 | 2012-02-18 | 2012 | 1 | |
| Telemark Teater | Telemark Teater | Norway, Skien, Hollenderigata | 1978-02-07 | -- | 1978–1987 | 3 | |
| Teatrul Sică Alexandrescu Brasov | Teatrul Sică Alexandrescu Brasov | Romania, Braşov, Piaţa Teatrului Nr. 1 | 1967-02-18 | -- | 1967–2010 | 2 | |
| Theater am Gärtnerplatz | Theater am Gärtnerplatz | Germany, Munich, Gärtnerplatz | 1899-03-20 | 1899-03-29 | 1899–1900 | 2 | |
| Toulouse | Toulouse | France, Toulouse | 1897-03-15 | -- | 1897 | 1 | |
| Tertulia Martinense | Tertulia Martinense | Spain, Barcelona | 1904-05-22 | -- | 1904 | 1 | |
| Theaterforum Kreuzberg | Theaterforum Kreuzberg | Germany, Berlin, Eisenbahnstraße 21 | 2009-05-15 | 2009-06-07 | 2009 | 1 | |
| Ţifeşti | Ţifeşti | Romania, Ţifeşti | -- | -- | | | |
| Théâtre des Mathurins | Théâtre des Mathurins | France, Paris, 36 Rue des Mathurins | 1928-03-14 | -- | 1928–1943 | 5 | |
| Théâtre de Lisieux-Pays d’Auge | Théâtre de Lisieux-Pays d’Auge | France, Lisieux, 2 Rue au Char | 1997-03-01 | 1997-03-28 | 1997–2013 | 2 | |
| Tērbatā | Tērbatā | Estonia, Tartu | 1918-09-10 | -- | 1918 | 1 | |
| Théâtre de l'Est Parisien (TEP) | Théâtre de l'Est Parisien (TEP) | France, Paris, 159 Avenue Gambetta | 1999-03-30 | 1999-04-15 | 1999 | 1 | |
| Taastrup Teater | Taastrup Teater | Denmark, 2630 Taastrup, Kjeld Abells Plads 1 | 2002-09-29 | -- | 2002–2006 | 2 | |
| Theater in der Königgrätzer Straße | Theater in der Königgrätzer Straße | Germany, Berlin, Stresemannstraße 29-29a | 1912-12-04 | 1913-05-14 | 1912–1920 | 6 | |
| Teatro Nacional Almeida Garrett | Teatro Nacional Almeida Garrett | Portugal, Lisbon, Praça D. Pedro IV | 1928-03-20 | -- | 1928 | 1 | |
| Theatre at the Mill | Theatre at the Mill | Northern Ireland, Newtownabbey, Carnmoney Rd N, Mossley Mill | 2011-04-08 | 2011-04-09 | 2011–2018 | 2 | |
| Teatro / Oratorio San Filippo | Teatro / Oratorio San Filippo | Italy, Turin | 1998-03-07 | 1998-03-08 | 1998 | 1 | |
| Teatr Dramatyczny | Teatr Dramatyczny | Poland, Wałbrzych, Plac Teatralny 1 | 1975-05-17 | -- | 1975 | 1 | |
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