| Teatr Wielki | Teatr Wielki | | | |
| Tolstoy State Theatre | Tolstoy State Theatre | | | |
| Theatre of Ireland | Theatre of Ireland | 1906 | 1 | |
| Tampere Internasjonale Teaterfestival | Tampere Internasjonale Teaterfestival | 1993 | 1 | |
| Tokyo International Players | Tokyo International Players | 2004 | 1 | |
| Thiasos Kathreftis | Thiasos Kathreftis | 2006 | 1 | |
| Théâtre du Vieux-Colombier | Théâtre du Vieux-Colombier | 1918 | 1 | |
| Trupa Anastazego Trapszy i Bolesława Kremskiego | Trupa Anastazego Trapszy i Bolesława Kremskiego | 1882 | 1 | |
| TTU Tech Players | TTU Tech Players | 2006 | 1 | |
| Torosha | Torosha | 1918 | 1 | |
| Transvaalse Raad vir die Uitvoerende Kunste | Transvaalse Raad vir die Uitvoerende Kunste | 1985 | 1 | |
| Thiasos tis Ellinikis Komodias – Eftychios Vonaseras-Evangel | Thiasos tis Ellinikis Komodias – Eftychios Vonaseras-Evangel | 1898 | 1 | |
| Tel Aviv-Yafo First International Theatre Festival | Tel Aviv-Yafo First International Theatre Festival | 2009 | 1 | |
| Thiasos Christina Kalogerikou | Thiasos Christina Kalogerikou | 1914 | 1 | |
| Teatr Polski pod dyr. Władysława Czajkowskiego | Teatr Polski pod dyr. Władysława Czajkowskiego | 1904 | 1 | |
| Thiasos Thomas Oikonomou-Loukia Tiveri | Thiasos Thomas Oikonomou-Loukia Tiveri | 1909 | 1 | |
| Teatrón | Teatrón | 1989 | 1 | |
| Thanhouser | Thanhouser | 1911 | 1 | |
| Teatr Fantazja | Teatr Fantazja | 1903 | 1 | |
| Theatre Four | Theatre Four | 1963 | 1 | |
| Tin Alley Players | Tin Alley Players | 1945 | 1 | |
| Thiasos (Olympia Lalaouni-Damaskou?) | Thiasos (Olympia Lalaouni-Damaskou?) | 1907 | 1 | |
| Theatergruppe Sankt Georgen, Die | Die Theatergruppe Sankt Georgen | 2001 | 1 | |
| Thiasos (Konstantinos Vonaseras?) | Thiasos (Konstantinos Vonaseras?) | 1896 | 1 | |
| Tysnesfest 09 | Tysnesfest 09 | 2009 | 1 | |
| Thiasos Dimosthenis Alexiadis | Thiasos Dimosthenis Alexiadis | 1901 | 1 | |
| Teaterfestivalen i Ålesund | Teaterfestivalen i Ålesund | 2006 | 1 | |
| Theater E | Theater E | 1994 | 1 | |
| Towarzystwo Dramatyczne Michała Członowskiego | Towarzystwo Dramatyczne Michała Członowskiego | 1897 | 1 | |
| Trupa operetkowa Juliana Grabińskiego | Trupa operetkowa Juliana Grabińskiego | 1884 | 1 | |
| Teatro Paulista | Teatro Paulista | 1956 | 1 | |
| Tom Løberg | Tom Løberg | 2010 | 1 | |
| Thiasos Nikos Moraïtis | Thiasos Nikos Moraïtis | 1918 | 1 | |
| Thiasos Panos Kalogerikos | Thiasos Panos Kalogerikos | 1910 | 1 | |
| Teaterfestivalen på Stiklestad | Teaterfestivalen på Stiklestad | 2010 | 1 | |
| Thiasos Athanasios Marikos-Emmanouil Kantiotis | Thiasos Athanasios Marikos-Emmanouil Kantiotis | 1916 | 1 | |
| Teaterhögskolans avgangsstudenter | Teaterhögskolans avgangsstudenter | 2000 | 1 | |
| Trupa Eugeniusza Majdrowicza | Trupa Eugeniusza Majdrowicza | 1904 | 1 | |
| Teatr Miejski | Teatr Miejski | 1911 | 1 | |
| Temporada Alta | Temporada Alta | 2006 | 1 | |
| Thiasos Tilemachos Lepeniotis | Thiasos Tilemachos Lepeniotis | 1914 | 1 | |
| Teatre Bis | Teatre Bis | 1997 | 1 | |
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