| Thiasos Christina Kalogerikou | Thiasos Christina Kalogerikou | 1914 | 1 | |
| Teatr Ziemi Pomorskiej | Teatr Ziemi Pomorskiej | 1955 | 1 | |
| Teatr Fantazja | Teatr Fantazja | 1903 | 1 | |
| Teatr Polski pod dyr. Władysława Czajkowskiego | Teatr Polski pod dyr. Władysława Czajkowskiego | 1904 | 1 | |
| Tomskij dramatičeskij teatr imeni Čkalova | Tomskij dramatičeskij teatr imeni Čkalova (Chkalov Tomsk Drama Theatre) | 1957 | 1 | |
| Teatr i Sąd | Teatr i Sąd | 1914 | 1 | |
| Teatrul Nottara | Teatrul Nottara | 2022 | 1 | |
| Talawa Theatre Company | Talawa Theatre Company | 1996 | 1 | |
| Teatr Soveta soûzov | Teatr Soveta soûzov (Soviet of Unions Theatre) | 1921 | 1 | |
| Tooneelvereeniging, De | De Tooneelvereeniging | 1889 | 1 | |
| Thiasos Thomas Oikonomou-Loukia Tiveri | Thiasos Thomas Oikonomou-Loukia Tiveri | 1909 | 1 | |
| Tysnesfest 09 | Tysnesfest 09 | 2009 | 1 | |
| Theatre Couture | Theatre Couture | 2000 | 1 | |
| Thiasos (Olympia Lalaouni-Damaskou?) | Thiasos (Olympia Lalaouni-Damaskou?) | 1907 | 1 | |
| Tivoli Teater | Tivoli Teater | 1901 | 1 | |
| TLTA Produktion | TLTA Produktion | 2023 | 1 | |
| Theater E | Theater E | 1994 | 1 | |
| Trupa Anastazego Trapszy i Bolesława Kremskiego | Trupa Anastazego Trapszy i Bolesława Kremskiego | 1882 | 1 | |
| Tournée Gabrieli Zapolskiej | Tournée Gabrieli Zapolskiej | 1887 | 1 | |
| Territorio Violeta | Territorio Violeta | 2023 | 1 | |
| Transvaalse Raad vir die Uitvoerende Kunste | Transvaalse Raad vir die Uitvoerende Kunste | 1985 | 1 | |
| Theater im Rang | Theater im Rang | 1970 | 1 | |
| Theater works | Theater works | 2024 | 1 | |
| Tom Løberg | Tom Løberg | 2010 | 1 | |
| Trupa Józefa Teksla i Feliksa Wesosowskiego | Trupa Józefa Teksla i Feliksa Wesosowskiego | 1883 | 1 | |
| Thiasos tis Ellinikis Komodias – Eftychios Vonaseras-Evangel | Thiasos tis Ellinikis Komodias – Eftychios Vonaseras-Evangel | 1898 | 1 | |
| Thiasos Nikos Moraïtis | Thiasos Nikos Moraïtis | 1918 | 1 | |
| Theatre Vertigo | Theatre Vertigo | 2007 | 1 | |
| Thiasos Panos Kalogerikos | Thiasos Panos Kalogerikos | 1910 | 1 | |
| Théâtre du Rideau de Bruxelles | Théâtre du Rideau de Bruxelles | 2002 | 1 | |
| Teatro del Maggio Musicale Fiorentino | Teatro del Maggio Musicale Fiorentino | 2024 | 1 | |
| Teaterfestivalen på Stiklestad | Teaterfestivalen på Stiklestad | 2010 | 1 | |
| Tofusha | Tofusha | 1994 | 1 | |
| Thiasos Athanasios Marikos-Emmanouil Kantiotis | Thiasos Athanasios Marikos-Emmanouil Kantiotis | 1916 | 1 | |
| Trupa Eugeniusza Majdrowicza | Trupa Eugeniusza Majdrowicza | 1904 | 1 | |
| Teatr-studiâ "Na Filâh" | Teatr-studiâ "Na Filâh" | 1992 | 1 | |
| Teatro del Loto | Teatro del Loto | 2022 | 1 | |
| Tin Alley Players | Tin Alley Players | 1945 | 1 | |
| Temporada Alta | Temporada Alta | 2006 | 1 | |
| Thiasos (Konstantinos Vonaseras?) | Thiasos (Konstantinos Vonaseras?) | 1896 | 1 | |
| Thiasos Tilemachos Lepeniotis | Thiasos Tilemachos Lepeniotis | 1914 | 1 | |
| Thiasos Dimosthenis Alexiadis | Thiasos Dimosthenis Alexiadis | 1901 | 1 | |
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