| Theater Studio | Theater Studio | Russia | -- | -- | | | |
| Teatre Líric | Teatre Líric | Spain, Barcelona, Carrer Mallorca, 277 | 1900-03-20 | -- | 1900 | 1 | |
| Teatro Trastevere | Teatro Trastevere | Italy, Rome, Via Jacopa de' Settesoli, 3 | 1982-03-24 | 2022-03-27 | 1982–2022 | 3 | |
| Theatro tis Imeras | Theatro tis Imeras (Theater of the Day) | Greece, Athens, 20 Gennimata N. Street | 2006-05-11 | 2006-12- | 2006 | 1 | |
| Theater Oben | Theater Oben | Germany, Karl-Marx-Stadt (Chemnitz) | 1979-04-11 | -- | 1979 | 1 | |
| Teatrul Bulandra (Sala Izvor) | Teatrul Bulandra (Sala Izvor) | Romania, Bucharest, Bulevardul Schitu Măgureanu 1 | 2005-11-11 | -- | 2005 | 1 | |
| Theater Duisburg | Theater Duisburg | Germany, Duisburg, Neckarstraße 1 | 2004-01-08 | 2013-10-13 | 2004–2013 | 5 | |
| Teatro La Casa | Teatro La Casa | Chile, Santiago | 2000-08-25 | -- | 2000 | 1 | |
| Théâtre Nanterre-Amandiers, Grande Salle | Théâtre Nanterre-Amandiers, Grande Salle | France, Nanterre, 7 Avenue Pablo Picasso | 1991-03-05 | 2013-04-27 | 1991–2013 | 2 | |
| Thymele Arts | Thymele Arts | United States of America, Los Angeles, 5481 CA-2 | 2018-06-02 | 2018-06-16 | 2018 | 1 | |
| Tindved Kulturhage | Tindved Kulturhage | Norway, Verdal, Møllegata 6 | 2010-11-17 | 2010-11-25 | 2010 | 1 | |
| Théâtre Octave Mirbeau | Théâtre Octave Mirbeau | France, Triel-sur-Seine, 3 Rue Cadot | 2015-01-15 | 2015-02-07 | 2015 | 1 | |
| Theatre Works | Theatre Works | Australia, Corner of, St Leonards Ave, St Kilda VIC, Australia | 2024-05-30 | 2024-06-15 | 2024 | 1 | |
| Teatr Dramatyczny m. st. Warszawy | Teatr Dramatyczny m. st. Warszawy | Poland, Warsaw, plac Defilad 1 | 2007-09-22 | 2011-11-19 | 2007 | 1 | |
| Teatro Reina Victoria | Teatro Reina Victoria | Spain, Madrid, Carrera de San Jerónimo | 1928-05-05 | -- | 1928 | 1 | |
| Théâtre Libre | Théâtre Libre | France, Paris | 1890-05-30 | -- | 1890–1891 | 2 | |
| Theatro Titania | Theatro Titania (Titania Theater) | Greece, Ioannina | 1940-04-05 | -- | 1940 | 1 | |
| Teatret i Kerteminde | Teatret i Kerteminde | Denmark, Kerteminde | 1907-11-22 | -- | 1907 | 1 | |
| Tyrili Kollektivets teatersal på Tøyen | Tyrili Kollektivets teatersal på Tøyen | Norway, Oslo, Tøyen | 1991-09-13 | -- | 1991 | 1 | |
| Teatr imeni Lunčarskogo | Teatr imeni Lunčarskogo | Russia, Murom | 1919-- | -- | 1919 | 1 | |
| Teatro Emperador | Teatro Emperador | Spain, León, Avda. Independencia, 14 | 2005-01-26 | 2005-01-28 | 2005 | 2 | |
| Teatro dell'Unione | Teatro dell'Unione | Italy, Viterbo, P.za Giuseppe Verdi, 01100 | 2001-02-03 | 2022-11-05 | 2001–2022 | 2 | |
| Theatro Technis | Theatro Technis | England, London, 26 Crowndale Rd | 2004-10-19 | 2018-12-19 | 2004–2017 | 4 | |
| Theatro Megas Alexandros | Theatro Megas Alexandros (Theater of Alexander the Great) | Greece, Thessaloniki | 1933-09-20 | -- | 1933 | 1 | |
| Theatre Royal | Theatre Royal | England, Winchester, Hampshire, 21 -23 Jewry Street | 1994-03-01 | 2011-03-19 | 1994–2011 | 3 | |
| theaterBurg | theaterBurg | Germany, Berlin, Weisestraße 49 | 2017-07-26 | 2017-08-18 | 2017 | 1 | |
| Theatro Dionysiadou | Theatro Dionysiadou (Dionysiadou theater) | Greece, Pireus | 1901-05-24 | 1901-08-24 | 1901–1921 | 7 | |
| Theatre Royal | Theatre Royal | Australia, Broken Hill, 347 Argent Street | 1891-08-10 | 1891-08-11 | 1891 | 1 | |
| Théâtre du Nord | Théâtre du Nord | France, Lille, 23/25 rue de Bergues | 2005-04-01 | 2022-01-06 | 2005–2021 | 4 | |
| Teatre Principal de Vilanova | Teatre Principal de Vilanova | Spain, Vilanova i la Geltrú (Barcelona), Rambla Principal, 4 | 1994-01-29 | 1994-01-29 | 1994 | 1 | |
| Tirschenreuth | Tirschenreuth | Germany, Tirschenreuth | 2003-03-29 | -- | 2003 | 1 | |
| Teatrul pentru Copii și Tineret "Luceafărul" | Teatrul pentru Copii și Tineret "Luceafărul" | Romania, Iași, str. Grigore Ureche nr. 5 | 2015-10-06 | -- | 2015 | 1 | |
| Toynbee Hall Theatre | Toynbee Hall Theatre | England, London, 28 Commercial St | 1949-02-12 | -- | 1949 | 1 | |
| Teatro Colosseo | Teatro Colosseo | Italy, Rome, Via Capo d'Africa | 1979-12-21 | 1980-02-17 | 1979 | 1 | |
| Timișoara | Timișoara | Romania, Timişoara | 1890-11-14 | 1940-12-18 | 1890–1940 | 9 | |
| Théâtre de Belleville | Théâtre de Belleville | France, Paris, 16 Passage Piver | 2015-12-09 | 2020-09-30 | 2015–2020 | 2 | |
| Teatre Lliure (Montjüic) | Teatre Lliure (Montjüic) | Spain, Barcelona, Pg. Santa Madrona, 40-46 / Pl. Margarida Xirgu, 1 | 2005-01-08 | 2022-07-03 | 2005–2022 | 8 | |
| Teatret | Teatret | Norway, Brevik | 1965-09-13 | -- | 1965 | 1 | |
| Teatry Dramatyczne | Teatry Dramatyczne | Poland, Szczecin | 1955-06-01 | -- | 1955–1968 | 2 | |
| Teatro Vittoria | Teatro Vittoria | Italy, Roma, Piazza di Santa Maria Liberatrice, 10 | 2013-02-19 | 2013-03-03 | 2013 | 1 | |
| Theater Regensburg | Theater Regensburg | Germany, Regensburg, Bismarckpl. 7 | 2000-12-19 | 2001-03-27 | 2000 | 1 | |
| Theater der Hansestadt Stralsund | Theater der Hansestadt Stralsund | Germany, Stralsund, Olof-Palme-Platz 6 | 1991-05-25 | -- | 1991–2005 | 3 | |
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