| Theatro Zizania | Theatro Zizania | Egypt, Alexandria | 1903-04-06 | -- | 1903 | 1 | |
| Theatron, Kentro Politismou "Ellinikos Kosmos", Aithousa Antigoni | "Theatron", Kentro Politismou "Ellinikos Kosmos", Aithousa Antigoni | Greece, Athens | 2012-06-06 | 2012-07-01 | 2012 | 1 | |
| Théo Théatre | Le Théo Théatre | France, Paris, 20 Rue Théodore Deck | 2007-12-19 | 2008-02-07 | 2007 | 1 | |
| Theodore and Adele Shank Theatre | Theodore and Adele Shank Theatre | United States, San Diego, 9500 Gilman Drive | 2018-06-06 | 2018-06-09 | 2018 | 1 | |
| Theodore L. Hazlett, Jr. Theatre | Theodore L. Hazlett, Jr. Theatre | United States, Pittsburgh, 6 Allegheny Square East | 1984-02-17 | 1984-04-01 | 1984 | 1 | |
| Theresa L. Kaufmann Auditorium | Theresa L. Kaufmann Auditorium | United States, New York, Lexington Avenue | 1948-02-14 | 1949-12-04 | 1948–1949 | 2 | |
| Thesbiteateret | Thesbiteateret | Norway, Tønsberg, Nordlysveien 4 c, 3113 Tønsberg | 1978-03-01 | -- | 1978 | 1 | |
| Thessaloniki | Thessaloniki | Greece, Thessaloniki | 1962-03-15 | 2013-10-12 | 1962–2013 | 2 | |
| Thiasos "Oi theatrinon theates" | Thiasos "Oi theatrinon theates" | Greece, Athens | 2007-02-08 | 2007-05-13 | 2007 | 1 | |
| Thionville | NEST - CDN transfrontalier de Thionville-Grand Est | France, Thionville, 15 Route de Manom | 1991-11-15 | 2018-06-08 | 1991–2018 | 4 | |
| Thionville, Théâtre de | Théâtre de Thionville | France, Thionville, 30 Boulevard Foch | -- | -- | | | |
| Thirteen/WNET New York (USA) | Thirteen/WNET New York (USA) | United States, New York | -- | -- | | | |
| Thisted Teater | Thisted Teater | Denmark, Thisted | 1883-10-12 | -- | 1883–1907 | 2 | |
| Thiva | Thiva | Greece, Thiva | 1981-11-15 | -- | 1981 | 1 | |
| Thomas-Morus-Gymnasium | Thomas-Morus-Gymnasium | Germany, Oelde, Zur Dicken Linde 29 | 1999-01-13 | 1999-01-13 | 1999 | 1 | |
| Thompson Studio Theatre, NCSU | Thompson Studio Theatre, NCSU | United States, Raleigh, Dunn Avenue | 1977-12-05 | 2001-09-15 | 1977–2001 | 2 | |
| Thompson Theatre | Thompson Theatre | United States, Raleigh, 2241 Dunn Ave. | -- | -- | | | |
| Thor Modéen teatern | Thor Modéen teatern | Sweden, Kungsör, Drottninggatan 19 | 2007-04-04 | -- | 2007 | 1 | |
| Thorndike Theatre, Leatherhead | Thorndike Theatre, Leatherhead | England, Leatherhead, Surrey | 1974-10-22 | 1974-11-09 | 1974 | 1 | |
| Thorvalds pub og studentkro | Thorvalds pub og studentkro | Norway, Nesna, Nesna | 2012-05-07 | -- | 2012 | 1 | |
| Three Horseshoes, The | The Three Horseshoes | England, London, 1166 High Road, Whetstone | 2007-06-12 | 2007-06-30 | 2007 | 1 | |
| Throndhjems Theater | Throndhjems Theater | Norway, Trondheim, Prinsens Gate 20 | 1861-11-17 | 1863-11-04 | 1861–1863 | 2 | 1 |
| Thunder River Theatre Company | Thunder River Theatre Company | United States, Carbondale, CO, 67 Promenade, | 2000-04-14 | 2000-04-29 | 2000 | 1 | |
| Thurber Theatre, Ohio State University | Thurber Theatre, Ohio State University | United States, Columbus, 1849 Cannon Drive | 2015-11-05 | 2015-11-15 | 2015 | 1 | |
| Thymele Arts | Thymele Arts | United States, Los Angeles, 5481 CA-2 | 2018-06-02 | 2018-06-16 | 2018 | 1 | |
| Thyolo Secondary School | Thyolo Secondary School | Malawi, Thyolo | 2006-07-22 | -- | 2006 | 1 | |
| Thüringer Landestheater Rudolstadt | Thüringer Landestheater Rudolstadt | Germany, Rudolstadt, Anger 1 | 1937-10-26 | 2006-10-13 | 1937–2006 | 5 | |
| Tian Qiao Theatre | Tian Qiao Theatre | China, Xicheng, Beijing, 30 Beiwei Rd | 2004-04-30 | 2011-04-24 | 2004–2011 | 2 | |
| Tianjin People's Art Theatre | Tianjin People's Art Theatre | China, Tianjin, 43 Pingshan Rd, Hexi Qu, Tianjin Shi, China | 2016-01-15 | 2016-01-16 | 2016 | 1 | |
| Tianjin YMCA | Tianjin YMCA (Tianjin qingnianhui) | China, Tianjin | 1938-- | 1938-- | 1938 | 1 | |
| Tiara Koto | Tiara Koto | Japan, Tokyo, 2 Chome-28-36 Sumiyoshi, Koto | 2006-10-14 | 2006-10-15 | 2006 | 1 | |
| Tibro | Tibro | Sweden, Tibro | 1989-11-18 | 1989-11-18 | 1989 | 1 | |
| Tierp | Tierp | Sweden, Tierp | 1989-10-14 | 1989-10-14 | 1989–1993 | 2 | |
| Tierra Del Sol, Studio Theatre – | Studio Theatre – Tierra Del Sol | United States, Lady Lake, 806 San Marino Dr | 2019-03-19 | 2019-04-28 | 2019 | 1 | |
| Ţifeşti | Ţifeşti | Romania, Ţifeşti | -- | -- | | | |
| Ţigănaşi | Ţigănaşi | Romania, Ţigănaşi | -- | -- | | | |
| Tigheci | Tigheci | Moldova, Tigheci | -- | -- | | | |
| TIK-Zelt vor der Votivkirche | TIK-Zelt vor der Votivkirche | Austria, Vienna | 1988-04-16 | -- | 1988 | 1 | |
| Tilburg | Tilburg | Netherlands, Tilburg | -- | -- | | | |
| Timișoara | Timișoara | Romania, Timişoara | 1890-11-14 | 1940-12-18 | 1890–1940 | 9 | |
| Timothy Christian Schools | Timothy Christian Schools | United States, Elmhurst, 188 West Butterfield Road | 2006-05-06 | -- | 2006 | 1 | |
| Timrå | Timrå | Sweden, Timrå | 1989-10-04 | 1989-10-04 | 1989 | 1 | |
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