| Teatro Studio Mejerchol’d | Teatro Studio Mejerchol’d | Italy, Bari | -- | -- | | | |
| Theater der Stadt Schweinfurt | Theater der Stadt Schweinfurt | Germany, Schweinfurt, Roßbrunnstraße 2 | 1977-09-23 | 2011-11-10 | 1977–2011 | 5 | |
| Teatro Civico | Teatro Civico | Italy, Tortona, Via Ammiraglio Mirabello, 3 | 1993-03-30 | 2005-02-20 | 1993–2005 | 2 | |
| Teatr Wielki | Teatr Wielki | Ukraine, Lviv | 1922-06-07 | -- | 1922–1928 | 2 | |
| Teatern i Östersund | Teatern i Östersund | Sweden, Östersund | 1899-02-03 | 1899-02-10 | 1899 | 1 | |
| Torn Space Theater | Torn Space Theater | United States of America, Buffalo, 612 Fillmore Ave | 2012-03-01 | 2012-03-25 | 2012 | 1 | |
| Theater an der Marschnerstraße | Theater an der Marschnerstraße | Germany, Hamburg, Marschnerstraße 46 | 2008-01-24 | 2016-04-10 | 2008–2016 | 2 | |
| Teatro Giuseppe Verdi | Teatro Giuseppe Verdi | Italy, Padua, Via dei Livello, 32 | 2003-05-06 | 2003-05-11 | 2003 | 1 | |
| Theater am Turm | Theater am Turm | Germany, Frankfurt am Main, Carlo-Schmid-Platz | 1963-10-30 | -- | 1963 | 1 | |
| Teatro Nobel | Teatro Nobel | Italy, Milan | 1987-12-09 | -- | 1987 | 1 | |
| Teatro Nuovo Sentiero | Teatro Nuovo Sentiero | Italy, Firenze, Via delle Panche, 36, 50141 Firenze FI, Italy | 2015-12-12 | 2015-12-13 | 2015 | 1 | |
| Theater am Kurfurstendamm | Theater am Kurfurstendamm | Germany, Berlin, Kurfürstendamm | 1935-10-04 | 1983-10-13 | 1935–1983 | 3 | |
| Theatro Attikon | Theatro Attikon (Atticon Theatre) | Greece, Drama | 1940-02- | -- | 1940 | 1 | |
| Teatret i Sakskøbing | Teatret i Sakskøbing | Denmark, Sakskøbing | 1907-10-08 | -- | 1907 | 1 | |
| Teatro Sá da Bandeira | Teatro Sá da Bandeira | Portugal, Santarém, Rua João Afonso nº7 | 2009-07-18 | -- | 2009 | 1 | |
| Théâtre de l’Archipel | Théâtre de l’Archipel | France, Perpignan, Avenue Général Leclerc | 2013-01-19 | 2020-10-15 | 2013–2020 | 4 | |
| The Questors Studio | The Questors Studio | England, London, 12 Mattock Ln | 1975-05- | 2017-12-05 | 1975–2015 | 4 | |
| Technical School Auditorium | Technical School Auditorium | Canada, Kingston | 1932-04-21 | -- | 1932 | 1 | |
| Tejido Abierto Teatro | Tejido Abierto Teatro | Spain, Madrid, Pza del Alamillo, 8 | 2016-12-14 | 2017-05-07 | 2016 | 1 | |
| The Novelty Theatre | The Novelty Theatre | United States of America, San Francisco | 1908-05-23 | 1908-05-23 | 1908 | 1 | |
| Teatro Politeama | Teatro Politeama | Italy, Piacenza, Via San Siro, 7 | 1892-05-30 | -- | 1892 | 1 | |
| Teatro San Fernando | Teatro San Fernando | Spain, Seville | 1963-11-14 | -- | 1963 | 1 | |
| Theatret i Tivoli | Theatret i Tivoli | Denmark, Haderslev | 1880-02-11 | -- | 1880 | 1 | |
| Theatret i Kristiansand | Theatret i Kristiansand | Norway, Kristiansand | 1858-04-16 | 1984-11-24 | 1858–1984 | 14 | |
| Teatro Monumental | Teatro Monumental | Portugal, LIsbon, Praca do Saldanha | 1956-01-20 | -- | 1956 | 1 | |
| Teatro del Carcere di Bollate | Teatro del Carcere di Bollate | Italy, Milano, Via Cristina Belgioioso, 120, 20157 | 2013-06-05 | -- | 2013 | 1 | |
| Theater der Stadt Plauen | Theater der Stadt Plauen | Germany, Plauen, Theaterplatz | 1962-04-21 | -- | 1962–1981 | 4 | |
| Theater de Maagd | Theater de Maagd | Netherlands, Bergen op Zoom, Grote Markt 32 | 2017-04-12 | -- | 2017 | 1 | |
| Theatre Variete | Theatre Variete | Turkey, Istanbul | 1907-11-21 | -- | 1907–1908 | 2 | |
| TeaterHUSET | TeaterHUSET | Denmark, Copenhagen, Magstræde 14 | 2006-10-12 | 2006-10-15 | 2006 | 1 | |
| Théâtre Louis Aragon | Théâtre Louis Aragon | France, Tremblay-en-France, 24 Boulevard de l'Hôtel de ville | 2011-03-26 | 2011-03-26 | 2011 | 1 | |
| Theatro Neapoleos | Theatro Neapoleos (Theater of Neapolis) | Greece, Athens | 1899-07-20 | 1904-07-26 | 1899–1904 | 4 | |
| Teatro Ermano Fabbri | Teatro Ermano Fabbri | Italy, Vignola, Via Pietro Minghelli, 11, 41058 | 2013-11-20 | -- | 2013 | 1 | |
| Timothy Christian Schools | Timothy Christian Schools | United States of America, Elmhurst, 188 West Butterfield Road | 2006-05-06 | -- | 2006 | 1 | |
| Teatro Verdi | Teatro Verdi | Italy, Padova, Via Livello, 32 | 2001-01-09 | 2022-11-13 | 2001–2022 | 3 | |
| Thurber Theatre, Ohio State University | Thurber Theatre, Ohio State University | United States of America, Columbus, 1849 Cannon Drive | 2015-11-05 | 2015-11-15 | 2015 | 1 | |
| The Auditorium | The Auditorium | United States of America, The High Point | 1913-12-30 | 1913-12-30 | 1913 | 1 | |
| Trinity Square Repertory Company | Trinity Square Repertory Company | United States of America, Providence, 201 Washington Street | 1968-03-21 | 1984-01-01 | 1968–1983 | 3 | |
| Theatro ton Komodion | Theatro ton Komodion (comedy theater) | Greece, Athens | 1894-10-29 | 1894-11-13 | 1894 | 1 | |
| Theatre Royal | Theatre Royal | England, Bradford, West Yorkshire, Manningham Lane | 1911-06-12 | 1911-06-17 | 1911 | 3 | |
| Twentieth Century Club | Twentieth Century Club | United States of America, San Francisco | 1909-11-30 | 1909-11-30 | 1909 | 1 | |
| Teatro dei Rozzi | Teatro dei Rozzi | Italy, Siena, Piazza Indipendenza, 15 | 1893-03-22 | -- | 1893–2023 | 4 | |
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