| Teatro Libero | Teatro Libero | Italy, Milan, Via Savona, 10, 20144 | 2006-07-04 | 2019-12-20 | 2006–2019 | 4 | |
| Teatre Domènech | Teatre Domènech | Spain, Rubí | 1914-08-02 | -- | 1914 | 1 | |
| Trondhjems Nationale Scene | Trondhjems Nationale Scene | Norway, Trondheim, Prinsens Gate 20 | 1911-09-16 | -- | 1911–1924 | 11 | |
| Teatro-Auditorio | Teatro-Auditorio | Spain, Pinoso, Alicante | 2010-01-22 | -- | 2010 | 1 | |
| Teatro El Llar | Teatro El Llar | Spain, Avilés, Av. Principado, 1 | 2008-02-01 | -- | 2008 | 1 | |
| Teatro Ghione | Teatro Ghione | Italy, Rome, Via delle Fornaci | 1984-11-20 | 1999-03- | 1984–1999 | 6 | |
| Teatro Armonia | Teatro Armonia | Italy, Trieste | 1901-10-22 | -- | 1901 | 4 | |
| Trondheim Torg | Trondheim Torg | Norway, Trondheim, Kongens gate 9 | 2004-11-06 | 2004-11-13 | 2004 | 1 | |
| Theater & Congres Orpheus | Theater & Congres Orpheus | Netherlands, Apeldoorn, Churchillplein 1 | 1992-02-19 | -- | 1992–2008 | 3 | |
| Théâtre de l'Humour | Théâtre de l'Humour | France, Paris, 42, rue Pierre Fontaine | 1938-08-11 | 1938-08-12 | 1938–1942 | 2 | |
| The Place Theatre | The Place Theatre | England, London, 17 Duke's Rd | 1985-02-25 | 1985-02-27 | 1985–1990 | 2 | |
| Teatro Maddalene | Teatro Maddalene | Italy, Padua, Via S. Giovanni di Verdara, 40, 35137 | 2025-02-14 | 2025-02-16 | 2025 | 1 | |
| Thirteen/WNET New York (USA) | Thirteen/WNET New York (USA) | United States of America, New York | -- | -- | | | |
| Teatro Bellini | Teatro Bellini | Italy, Palermo, Piazza Bellini, 1-90133 | 1892-12-11 | -- | 1892 | 1 | |
| The Natatorium | The Natatorium | United States of America, Ashland | 1912-11-29 | 1912-11-29 | 1912 | 1 | |
| Teatro Eutheca | Teatro Eutheca | Italy, Roma, Via Quinto Publicio, 90, 00175 | 2013-10-17 | 2013-11-03 | 2013 | 1 | |
| Tom Patterson Theatre | Tom Patterson Theatre | Canada, Stratford, 111 Lakeside Dr | 2006-07-25 | 2016-09-23 | 2006–2016 | 2 | |
| Teatro Fuencarral | Teatro Fuencarral | Spain, Madrid, Calle Fuencarral 133 | 1922-01-17 | -- | 1922 | 1 | |
| Teatre de Salt | Teatre de Salt | Spain, Salt, Carrer de Sant Jaume, 2 | 2009-10-16 | 2009-10-18 | 2009 | 2 | |
| Televisión Española (TVE) | Televisión Española (TVE) | Spain | 1964-07-22 | -- | 1964–2002 | 20 | |
| Teatrul Bulandra (Sala Izvor) | Teatrul Bulandra (Sala Izvor) | Romania, Bucharest, Bulevardul Schitu Măgureanu 1 | 2005-11-11 | -- | 2005 | 1 | |
| The Brandels | The Brandels | United States of America, Omaha | 1910-06-11 | 1910-06-11 | 1910 | 1 | |
| Teatr Nacij | Teatr Nacij (Theatre of Nations) | Russia, Moscow, 3, Petrovsky Lane, | 2013-10-06 | -- | 2013 | 1 | |
| Teatr na Woli | Teatr na Woli | Poland, Warsaw, Marcina Kasprzaka 22 | 1983-05-10 | -- | 1983–1997 | 2 | |
| Theater Zuidplein | Theater Zuidplein | Netherlands, Rotterdam, Zuidplein 60-64 | 2002-05-31 | -- | 2002 | 1 | |
| Tveten ungdomsskole | Tveten ungdomsskole | Norway, Porsgrunn | 2005-10-20 | 2005-10-21 | 2005–2006 | 3 | |
| Theatro Orfefs | Theatro Orfefs (Theater Orpheus) | Greece, Volos | 1896-07-13 | -- | 1896 | 1 | |
| Teatrul "George Ciprian" | Teatrul "George Ciprian" | Romania, Buzău, Bd. N. Bălcescu nr. 50 | 2005-06-18 | -- | 2005 | 1 | |
| Teatro Sociale | Teatro Sociale | Italy, Amelia, Via del Teatro, 39 | 1999-03-16 | -- | 1999 | 1 | |
| Theater Rüsselsheim | Theater Rüsselsheim | Germany, Rüsselsheim am Main, Am Treff 1 | 2005-11-09 | -- | 2005 | 1 | |
| Teatro Centrale | Teatro Centrale | Italy, Rome, Via Celsa 6 | 1995-04-13 | -- | 1995–1996 | 2 | |
| Tămăoani | Tămăoani | Romania, Frumuşiţa | -- | -- | | | |
| Theater Basel | Theater Basel | Switzerland, Basel, Elisabethenstrasse 16 | 1991-12-12 | 2017-06-22 | 1991–2017 | 13 | |
| Theatre Royal | Theatre Royal | England, Winchester, Hampshire, 21 -23 Jewry Street | 1994-03-01 | 2011-03-19 | 1994–2011 | 3 | |
| The Blue Room Theatre - Studio | The Blue Room Theatre - Studio | Australia, Northbridge, Arts House, 51 - 53 James Street | 2013-08-13 | 2013-08-31 | 2013 | 1 | |
| Teatro Nacional São João | Teatro Nacional São João | Portugal, Porto, Praça da Batalha | 2010-10-20 | 2010-10-24 | 2010 | 1 | |
| Teatro Theatron | Teatro Theatron | Italy, Roma, p.le Aldo Moro, 5, Rome, Italy | 1986-05-26 | 1986-05-31 | 1986 | 1 | |
| Theatret i Tromsø | Theatret i Tromsø | Norway, Tromsø | 1880-05-10 | -- | 1880–1909 | 5 | |
| Teatro Greco | Teatro Greco | Italy, Rome, Via Ruggero Leoncavallo 10 | 2001-03-13 | 2001-04-08 | 2001 | 1 | |
| Theatro Kafalos eller Dimotiko Kefaneio Argostoliou | Theatro Kafalos eller Dimotiko Kefaneio Argostoliou | Greece, Argostoliou | 1912-01- | -- | 1912 | 1 | |
| Teatro Kismet OperA | Teatro Kismet OperA | Italy, Bari, Str. S. Giorgio Martire, 22/F | 2008-03-29 | 2008-03-30 | 2008 | 1 | |
| Theater T | Theater T | Greece, Thessaloniki, l. Flemingk 16, Thessaloniki 546 42, Greece | 2023-12-01 | 2024-01-07 | 2023 | 1 | |
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