| Theater der Stadt Koblenz | Theater der Stadt Koblenz | Germany, Koblenz, Clemensstraße 5 | 1928-04-04 | 2005-06-26 | 1928–2015 | 12 | |
| Teatro Costanzi | Teatro Costanzi | Italy, Rome | 1899-02-21 | 1910-10-24 | 1899–1924 | 12 | |
| Teatrul National Radu Stanca Sibiu | Teatrul National Radu Stanca Sibiu | Romania, Sibiu, Bulevardul Corneliu Coposu 2 | 1960-11-17 | 2019-02-10 | 1960–2018 | 12 | |
| Tiroler Landestheater | Tiroler Landestheater | Austria, Innsbruck | 1940-01-06 | 2008-03-01 | 1940–2008 | 12 | |
| Teatro Duse | Teatro Duse | Italy, Bologna, Via Cartoleria, 42 | 1973-02-07 | 2000-12-03 | 1973–2018 | 13 | |
| Theatret i Arendal | Theatret i Arendal | Norway, Arendal | 1858-04-22 | 1904-05-31 | 1858–1907 | 13 | |
| Theater Basel | Theater Basel | Switzerland, Basel, Elisabethenstrasse 16 | 1991-12-12 | 2017-06-22 | 1991–2017 | 13 | |
| Theatret i Kristiansand | Theatret i Kristiansand | Norway, Kristiansand | 1858-04-16 | 1984-11-24 | 1858–1984 | 14 | |
| Teatro Carignano | Teatro Carignano | Italy, Torino, Piazza Carignano, 6 | 1895-02-18 | 2023-01-15 | 1895–2023 | 14 | |
| The Kenneth Sawyer Goodman Memorial Theatre | The Kenneth Sawyer Goodman Memorial Theatre (The Art Institute of Chicago) | United States of America, Chicago, 111 S Michigan Ave | 1928-02-07 | 1951-12-22 | 1928–1952 | 14 | |
| The Questors Playhouse | The Questors Playhouse | England, London, 12 Mattock Ln | 1964-04- | 2006-09-30 | 1964–2006 | 14 | |
| Theater an der Wien | Theater an der Wien | Austria, Vienna, Linke Wienzeile 6 | 1905-05-30 | 2017-04-04 | 1905–2017 | 15 | |
| Tyrone Guthrie Theater, The | Tyrone Guthrie Theater | United States of America, Minneapolis, 818 South 2nd Street | 1968-06-20 | 2020-02-16 | 1968–2020 | 15 | |
| Tower Theatre | Tower Theatre | England, London, Bride Lane | 1953-05-15 | 2023-10-08 | 1953–2023 | 16 | |
| Teatret Vårt | Teatret Vårt | Norway, Molde, Gørvellplassen 1 | 1993-10-16 | 2023-10-05 | 1993–2023 | 16 | |
| Teatrul Național Radiofonic (Societatea Română de Radiodifuziune) | Teatrul Național Radiofonic (Societatea Română de Radiodifuziune) | Romania, Bucureşti, Str. General Berthelot, Nr. 60-64 | 1929-09-28 | 1991-- | 1929–2006 | 16 | |
| Tampereen Teatteri | Tampereen Teatteri | Finland, Tampere, 2, Keskustori | 1904-10-14 | 2003-05-16 | 1904–2002 | 16 | |
| Teatro Goldoni | Teatro Goldoni | Italy, Venice, Sestiere San Marco | 1892-05-20 | 2022-02-06 | 1892–2022 | 16 | |
| Teatr Polski Victoria | Teatr Polski Victoria | Poland, Łódź | 1882-10-29 | 1918-12-23 | 1882–1918 | 17 | |
| Theatro Kyvelis | Theatro Kyvelis (Kyvelis Theater) | Greece, Athens | 1908-07-17 | 1953-03-15 | 1908–1953 | 17 | |
| Teatro Valle | Teatro Valle | Italy, Rome, Via del Teatro Valle, 22-32 | 1891-03-10 | 1893-03-19 | 1891–1982 | 17 | |
| Theater Oberhausen | Theater Oberhausen | Germany, Oberhausen, Will-Quadflieg-Platz 1 | 1972-12-05 | 2018-05-05 | 1972–2018 | 17 | |
| Teatr Telewizji | Teatr Telewizji | Poland, Warsaw, Teatr TV, ul. Woronicza 17 | 1962-12-10 | 2009-02-16 | 1962–2009 | 18 | |
| Tønsberg | Tønsberg | Norway, Tønsberg | 1889-03-21 | 1982-11-23 | 1889–1991 | 18 | |
| Théâtre Royal du Parc | Théâtre Royal du Parc | Belgium, Brussels, Rue de la Loi 3 | 1889-03-01 | 2023-06-18 | 1889–2023 | 18 | |
| Teatrul Naţional Cluj | Teatrul Naţional Cluj | Romania, Cluj-Napoca, Piaţa Ştefan cel Mare 2-4 | 1922-06-03 | 1940-03-09 | 1922–2016 | 19 | |
| Théâtre de l'Oeuvre | Théâtre de l'Oeuvre | France, Paris, 55 Rue de Clichy | 1897-11-09 | 1904-03-12 | 1897–1964 | 20 | |
| Televisión Española (TVE) | Televisión Española (TVE) | Spain | 1964-07-22 | -- | 1964–2002 | 20 | |
| Teatr im. Juliusza Słowackiego | Teatr im. Juliusza Słowackiego | Poland, Kraków, pl. Św. Ducha 1 | 1910-04-30 | 1916-06-08 | 1910–2012 | 20 | |
| Theater am Franzensplatz | Theater am Franzensplatz | Austria, Graz, Franzensplatz | 1891-10-10 | 1908-11-04 | 1891–1909 | 20 | |
| Teatret Hamar | Teatret Hamar | Norway, Hamar, Strandgata 23 | 1927-09-24 | 1984-04-04 | 1927–2008 | 20 | |
| Teatr Polski | Teatr Polski | Poland, Poznań, 27 Grudnia 8/10 | 1882-11-09 | 1971-01-23 | 1882–2008 | 21 | |
| Theater in Baden-Baden | Theater in Baden-Baden | Germany, Baden-Baden | 1887-07-08 | -- | 1887–1928 | 22 | |
| Teater Ibsen | Teater Ibsen | Norway, Skien, Hollenderigata | 1990-09-19 | 2023-10-28 | 1990–2023 | 22 | |
| Theater in der Josefstadt | Theater in der Josefstadt | Austria, Vienna, Josefstädter Straße 26 | 1900-07-14 | 2024-04-23 | 1900–2023 | 23 | |
| Teatro Argentina | Teatro Argentina | Italy, Rome, Largo di Torre Argentina, 52 | 1919-08-28 | 2019-04-28 | 1919–2019 | 23 | |
| Teatro Manzoni | Teatro Manzoni | Italy, Milan, Via Alessandro Manzoni | 1891-09-26 | 2023-02-26 | 1891–2023 | 23 | |
| Toneelschuur Haarlem | Toneelschuur Haarlem | Netherlands, Haarlem, Lange Begijnestraat 9 | 1987-12-02 | 2017-05-25 | 1987–2017 | 24 | |
| Teatr Miejski | Teatr Miejski | Poland, Krakow, Plac Świętego Ducha 1 | 1894-04-27 | 1912-05-06 | 1894–1912 | 26 | |
| Teatr Miejski | Teatr Miejski | Ukraine, Lviv, Svobody Ave., 28 | 1898-04-05 | 1917-08-25 | 1898–1918 | 39 | |
| Teatrul Naţional Iasi | Teatrul Naţional Iasi | Romania, Iaşi, Str. Agatha Bârsescu nr. 18 | 1894-04-07 | 2017-05-20 | 1894–2018 | 42 | |
| Teatrul National Bucuresti | Teatrul National Bucuresti | Romania, Bucharest, Bulevardul Nicolae Bălcescu, 2 | 1895-12-09 | 2024-01-28 | 1895–2024 | 47 | |
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