| Theatre in the Round Players | Theatre in the Round Players | United States, Minneapolis, 245 Cedar Ave | 2006-01-06 | 2006-01-29 | 2006 | 1 | |
| Theatro Apollon | Theatro Apollon | Greece, Pyrgos, Ileia, Markou Mpotsari 4 | 1909-04-16 | 1909-04-18 | 1909–1930 | 2 | |
| Theater Aachen | Theater Aachen | Germany, Aachen, Theaterplatz | 1972-04-15 | 2014-06-07 | 1972–2014 | 9 | |
| Teatro da Comuna | Teatro da Comuna | Portugal, Lisbon, Praça de Espanha S/N | 2013-10-30 | 2013-12-22 | 2013 | 1 | |
| Teatro Comunale G. B. Pergolesi | Teatro Comunale G. B. Pergolesi | Italy, Jesi AN, Piazza della Repubblica, 9 | 1999-02-18 | 2005-02-02 | 1999–2005 | 2 | |
| Teatro Principal de Alicante | Teatro Principal de Alicante | Spain, Alicante, Plaza del Ruperto Chapí | 2001-02-17 | 2010-05-08 | 2001–2010 | 3 | |
| Tjarnarbær | Tjarnarbær | Iceland, Reykjavík | 1993-01-29 | -- | 1993 | 1 | |
| Taproot Theatre | Taproot Theatre | United States, Seattle, 204 N 85th St | 2005-02-02 | 2005-03-05 | 2005 | 1 | |
| Theater in der Klosterstraße | Theater in der Klosterstraße | Germany, Berlin, Klosterstraße 43 | 1928-03-20 | -- | 1928 | 2 | |
| Teatr Miejski | Teatr Miejski | Poland, Krakow, Plac Świętego Ducha 1 | 1894-04-27 | 1912-05-06 | 1894–1912 | 26 | |
| Teatro Sociale di Soresina | Teatro Sociale di Soresina | Italy, Soresina CR, Via Giuseppe Verdi, 23 | 2000-01-31 | -- | 2000 | 1 | |
| Théâtre de l’Opprimé | Théâtre de l’Opprimé | France, Paris, 78 Rue du Charolais | 2012-12-19 | 2014-02-16 | 2012–2014 | 2 | |
| Tivolischouwburg | Tivolischouwburg | Netherlands, Rotterdam | 1891-02-26 | -- | 1891–1893 | 5 | |
| Theatro Katerinas Vasilakou | Theatro Katerinas Vasilakou | Greece, Athens, Profitou Daniil 3 | 2003-09-08 | 2003-09-20 | 2003 | 1 | |
| Teatro Carignano | Teatro Carignano | Italy, Torino, Piazza Carignano, 6 | 1895-02-18 | 2017-04-02 | 1895–2017 | 10 | |
| Teatr im. hr. Skarbka | Teatr im. hr. Skarbka | Ukraine, Lviv | 1879-12-05 | 1900-04-09 | 1879–1899 | 7 | |
| Tulcea | Tulcea | Romania, Tulcea | -- | -- | | | |
| Teatro Tascabile di Bergamo | Teatro Tascabile di Bergamo | Italy, Bergamo, Via San Lorenzo 12/A | 1996-06-09 | -- | 1996 | 1 | |
| Theater de Garage | Theater de Garage | Netherlands, Venlo, Saxenkampstraat 2 | 2004-10-16 | -- | 2004 | 1 | |
| Theatertage Aarau | Theatertage Aarau | Switzerland, Aarau, Metzgergasse 18 | 2002-06-15 | -- | 2002 | 1 | |
| Teatro Gerbino | Teatro Gerbino | Italy, Torino | 1889-02-15 | 1894-01-10 | 1889–1898 | 5 | |
| Town Assembly | Town Assembly | Malawi, Nkhotakota | 2006-06-10 | -- | 2006 | 1 | |
| Théâtre Pitoëff | Théâtre Pitoëff | Switzerland, 1205 Genève, Rue de Carouge 52 | 1920-02-05 | -- | 1920 | 1 | |
| Tripoli | Tripoli | Libya, Tripoli | 2013-09-04 | 2013-09-09 | 2013 | 1 | |
| Theatre Royal | Theatre Royal Plymouth | England, Plymouth, Royal Parade | 1993-05-11 | 2017-10-07 | 1993–2017 | 3 | |
| Teatret | Teatret | Norway, Porsgrunn | 1956-05-10 | 1965-09-19 | 1956–1975 | 9 | |
| Théâtre de l'Oeuvre | Théâtre de l'Oeuvre | France, Paris, 55 Rue de Clichy | 1897-11-09 | 1904-03-12 | 1897–1964 | 20 | |
| Théâtre de Gisors | Théâtre de Gisors | France, Gisors | 2013-04-07 | -- | 2013 | 1 | |
| Théâtre de l'Arc-en-Ciel | Théâtre de l'Arc-en-Ciel | France, Rungis, 1 Place du Général de Gaulle | 1999-01-29 | -- | 1999 | 1 | |
| Thomas-Morus-Gymnasium | Thomas-Morus-Gymnasium | Germany, Oelde, Zur Dicken Linde 29 | 1999-01-13 | 1999-01-13 | 1999 | 1 | |
| Theatre Royal | Theatre Royal | Australia, Broken Hill, 347 Argent Street | 1891-08-10 | 1891-08-11 | 1891 | 1 | |
| Théâtre des Menus Plaisirs | Théâtre des Menus Plaisirs | France, Paris, 33 Rue Fbg St Martin | 1895-05-08 | -- | 1895 | 1 | |
| Televiziunea Română (TVR) | Televiziunea Română (TVR) | Romania, Bucharest, Calea Dorobanți 191 | 1965-01-16 | 2013-11-11 | 1965–2013 | 7 | |
| Theatret i Fredrikshald | Theatret i Fredrikshald | Norway, Halden | 1878-10-24 | 1880-03-07 | 1878–1904 | 6 | |
| Théâtre des Nations | Théâtre des Nations | France, Paris, 2 Place du Châtelet | -- | -- | | | |
| Théâtre de l’Espace | Théâtre de l’Espace | France, Besançon, Place de l’Europe | 2000-03-07 | 2000-03-08 | 2000 | 1 | |
| Teatro Colosseo | Teatro Colosseo | Italy, Rome, Via Capo d'Africa | 1979-12-21 | -- | 1979 | 1 | |
| Teatro Aldo Fabrizi | Teatro Aldo Fabrizi | Italy, Morlupo, Rome, Via del Mattatoio, 58 | 2009-03-22 | -- | 2009 | 1 | |
| Theater Lieve Vrouw | Theater Lieve Vrouw | Netherlands, Amersfoort, Lieve Vrouwestraat 13 | 2000-04-15 | -- | 2000–2008 | 3 | |
| Theater Rampe | Theater Rampe | Germany, Stuttgart, Filderstraße 47 | 2010-05-17 | -- | 2010 | 1 | |
| The Cambridge Theatre | The Cambridge Theatre | England, Cambridge, 6 St Edward's Passage | -- | -- | | | |
| Teatrul Liric | Teatrul Liric | Romania, Bucharest, Piaţa Walter Mărăcineanu | 1897-11- | 1908-02-03 | 1897–1920 | 6 | |
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