| Torosha | Torosha | 1918 | 1 | |
| Theater am Brunnenhof | Theater am Brunnenhof | 1949 – 1950 | 3 | |
| Teatro 5 de Setembro | Teatro 5 de Setembro | 1952 | 2 | |
| Teatr Mały | Teatr Mały | 1905 – 1913 | 2 | |
| Tomskij dramatičeskij teatr imeni Čkalova | Tomskij dramatičeskij teatr imeni Čkalova (Chkalov Tomsk Drama Theatre) | 1957 | 1 | |
| Tampere Theatre Festival | Tampere Theatre Festival | 2009 | 1 | |
| Thelma Holt | Thelma Holt | 1994 | 3 | |
| Tourism East Flores Municipal Office | Tourism East Flores Municipal Office | 2019 | 1 | |
| Teatro Comunale Niccolini | Teatro Comunale Niccolini | 2024 | 1 | |
| Teatr Ziemi Pomorskiej | Teatr Ziemi Pomorskiej | 1955 | 1 | |
| Teatr Fantazja | Teatr Fantazja | 1903 | 1 | |
| Teaterkompaniet Røde Rom | Teaterkompaniet Røde Rom | 2009 – 2010 | 3 | |
| The Ilya Bobkov Workshop Theater | The Ilya Bobkov Workshop Theater | 2025 | 1 | |
| Theatre Office Natori, The | The Theatre Office Natori | 1999 – 2012 | 24 | |
| Teatr i Sąd | Teatr i Sąd | 1914 | 1 | |
| Theatre Arts Guild | Theatre Arts Guild | 2025 | 1 | |
| Theater Bielefeld | Theater Bielefeld | 2004 – 2016 | 4 | |
| Teatro de la Danza de Madrid | Teatro de la Danza de Madrid | 2010 – 2011 | 40 | |
| Teatr Polski pod dyr. Władysława Czajkowskiego | Teatr Polski pod dyr. Władysława Czajkowskiego | 1904 | 1 | |
| Teatr Soveta soûzov | Teatr Soveta soûzov (Soviet of Unions Theatre) | 1921 | 1 | |
| Torinokai | Torinokai | 1983 – 1994 | 3 | |
| Theater der Litterarischen Gesellschaft in Leipzig | Theater der Litterarischen Gesellschaft in Leipzig | 1896 – 1897 | 3 | |
| Tønder-Turneen | Tønder-Turneen | 1910 | 2 | |
| Théâtre de Liège | Théâtre de Liège | 2022 – 2025 | 10 | |
| Talawa Theatre Company | Talawa Theatre Company | 1996 | 1 | |
| Thiasos Dimitrios Angelakis | Thiasos Dimitrios Angelakis | 1900 – 1901 | 3 | |
| Tel Aviv-Yafo First International Theatre Festival | Tel Aviv-Yafo First International Theatre Festival | 2009 | 1 | |
| Talía Teatro | Talía Teatro | 2023 – 2025 | 35 | |
| Tooneelvereeniging, De | De Tooneelvereeniging | 1889 | 1 | |
| Thiasos Christina Kalogerikou | Thiasos Christina Kalogerikou | 1914 | 1 | |
| Teatro Stabile di Genova | Teatro Stabile di Genova | 1960 – 2018 | 12 | |
| Teatr kukol | Teatr kukol (Puppet Theatre) | 2002 | 2 | |
| Théâtre Centaure | Théâtre Centaure | 2000 – 2003 | 3 | |
| Théâtre de l'Oeuvre | Théâtre de l'Oeuvre | 1893 – 1923 | 61 | |
| Thiasos Thomas Oikonomou-Loukia Tiveri | Thiasos Thomas Oikonomou-Loukia Tiveri | 1909 | 1 | |
| Theater Department of Sangmyung University's College of Arts | Theater Department of Sangmyung University's College of Arts | 2023 | 1 | |
| Theatre Couture | Theatre Couture | 2000 | 1 | |
| Theater Die Insel in der Komödie | Theater Die Insel in der Komödie | 1947 | 3 | |
| Teatre Romea | Teatre Romea | 2003 – 2006 | 8 | |
| Théâtre National Wallonie-Bruxelles | Théâtre National Wallonie-Bruxelles | 2022 | 1 | |
| The Embassy of the Republic of Bulgaria in the Republic of Slovenia | The Embassy of the Republic of Bulgaria in the Republic of Slovenia | 2024 | 1 | |
| Tehrik-e-Niswan | Tehrik-e-Niswan | 2006 – 2024 | 5 | |
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