| Theatro Megas Alexandros | Theatro Megas Alexandros (Theater of Alexander the Great) | Greece, Thessaloniki | 1933-09-20 | -- | 1933 | 1 | |
| Tbilisi International Festival of Theatre | Tbilisi International Festival of Theatre | Georgia, Tbilisi | 2015-10-05 | -- | 2015 | 1 | |
| The Court Theatre | The Court Theatre | New Zealand, Christchurch, Bernard St, Addington | 2003-02-08 | 2003-03-08 | 2003 | 1 | |
| Teatro di Treviglio | Teatro di Treviglio | Italy, Treviglio | 1893-10-17 | -- | 1893 | 1 | |
| Tingsaker skole | Tingsaker skole | Norway, Lillesand | 1997-09-19 | -- | 1997 | 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 | |
| Teatr im. Juliusza Osterwy | Teatr im. Juliusza Osterwy | Poland, Gorzów Wielkopolski | 1965-04-03 | -- | 1965 | 1 | |
| Teatro del Siscar de Santomera | Teatro del Siscar de Santomera | Spain, El Siscar, Murcia, Calle Antonio Machado, 1 | 2010-04-15 | -- | 2010 | 1 | |
| 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 | |
| Torsby | Torsby | Sweden, Torsby | 1993-10-03 | -- | 1993 | 1 | |
| The University Theatre, University of Honolulu, Department of Theatre and Drama | The University Theatre, University of Honolulu, Department of Theatre and Drama | United States of America, Honolulu, 1314 S King St | 1964-05-22 | 1964-05-30 | 1964 | 1 | |
| Teatr Ziemi Rzeszowskiej | Teatr Ziemi Rzeszowskiej | Poland, Rzeszów | 1946-11-08 | -- | 1946 | 1 | |
| Teatro dell'Elfo | Teatro dell'Elfo | Italy, Milan, Corso Buenos Aires 33 | 1994-10-19 | -- | 1994 | 1 | |
| Theater Marl | Theater Marl | Germany, Marl, Am Theater 1 | 2008-01-31 | -- | 2008 | 1 | |
| Theatre Royal | Theatre Royal | England, Nottingham, Theatre Square | 2018-02-05 | 2018-02-10 | 2018 | 1 | |
| Teatro Aberto | Teatro Aberto | Portugal, Lisbon, R. Armando Cortez | 2002-02-26 | -- | 2002 | 1 | |
| Teatre Líric | Teatre Líric | Spain, Barcelona, Carrer Mallorca, 277 | 1900-03-20 | -- | 1900 | 1 | |
| Theatro Poulakaki | Theatro Poulakaki (Poulakaki Theatre) | Greece, Iraklion, Crete | 1939-04-13 | -- | 1939 | 1 | |
| Tsjernigivs'kij molodizjnij teatr Vistavi | Tsjernigivs'kij molodizjnij teatr Vistavi | Ukraine, Tsjernihiv | 2004-10-01 | -- | 2004 | 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 | |
| Theatro Giorgou Pappa | Theatro Giorgou Pappa (Giorgos Pappas theater) | Greece, Athens | 1964-10-08 | 1964-11-29 | 1964 | 1 | |
| Teatr imeni Lunčarskogo | Teatr imeni Lunčarskogo | Russia, Murom | 1919-- | -- | 1919 | 1 | |
| Theatro Palaias Ilektrikis | Theatro Palaias Ilektrikis (Old Electric Theater) | Greece, Volos | 2009-11-13 | 2009-12-13 | 2009 | 1 | |
| Târgu Secuiesc | Târgu Secuiesc | Romania, Târgu Secuiesc | 1890-05-29 | -- | 1890 | 1 | |
| Theater In Der Altstadt | Theater In Der Altstadt | Italy, Merano BZ, Corso della Libertà, 27 | 2019-10-08 | -- | 2019 | 1 | |
| 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 | |
| The Grand | The Grand | United States of America, Greensboro | 1911-05-02 | 1911-05-02 | 1911 | 1 | |
| Theater Zeitz | Theater Zeitz | Germany, Zeitz | 1990-01-27 | -- | 1990 | 1 | |
| Trenton | Trenton | United States of America | 1903-03-24 | 1903-03-24 | 1903 | 1 | |
| Theatro Thessalonikis | Theatro Thessalonikis | Greece, Thessaloniki | 2005-03-11 | 2005-04-24 | 2005 | 1 | |
| Town Hall | Town Hall | Ireland, Westport | 1980-03-08 | 1980-03-09 | 1980 | 1 | |
| Theaterhaus Köln | Theaterhaus Köln | Germany, Köln (Cologne), Stammstraße 38 | 2003-10-03 | 2004-04-25 | 2003 | 1 | |
| Teatro Border | Teatro Border | Argentina, Buenos Aires, Godoy Cruz 1838, | 2021-10-07 | 2021-11-26 | 2021 | 1 | |
| Teatr Miejski | Teatr Miejski | Poland, Grudziądz | 1927-07-24 | -- | 1927 | 1 | |
| Theatre of the Riverside Church | Theatre of the Riverside Church | United States of America, New York, 91 Claremont Avenue | 2002-11-02 | 2002-11-16 | 2002 | 1 | |
| Tom Hendry Warehouse Theater | Tom Hendry Warehouse Theater | Canada, Winnipeg, 140 Rupert Ave | 2019-02-03 | -- | 2019 | 1 | |
| Teatr Ludowy | Teatr Ludowy | Poland, Warsaw | 1957-03-02 | -- | 1957 | 1 | |
| Teatro Chapí de Villena | Teatro Chapí de Villena | Spain, Villena, Calle Luciano López Ferrer, 17 | 2005-06-04 | 2005-06-04 | 2005 | 1 | |
| Tjarnarbær | Tjarnarbær | Iceland, Reykjavík | 1993-01-29 | -- | 1993 | 1 | |
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