| Trinity Valley School | Trinity Valley School | United States of America, Willow Creek, 730 CA-96 | 2005-12-08 | -- | 2005 | 1 | |
| Trinity Theatre, The | The Trinity Theatre | England, Tunbridge Wells, Church Road | 1985-01-19 | 2023-10-15 | 1985–2023 | 8 | |
| Trinity Theatre, Cowes, Isle of Wight | Trinity Theatre, Cowes, Isle of Wight | England, The Grv, Cowes PO31 7QR, United Kingdom | -- | -- | | | |
| Trinity Street Players | Trinity Street Theatre | United States of America, Austin, 901 Trinity Street | 2019-06-21 | 2019-07-13 | 2019 | 1 | |
| Trinity Square Repertory Company | Trinity Square Repertory Company | United States of America, Providence, 201 Washington Street | 1968-03-21 | 1984-01-01 | 1968–1983 | 3 | |
| Trinity Repertory Company | Trinity Repertory Company | United States of America, Providence, 201 Washington St. | 1975-01-07 | 1998-03-01 | 1975–1998 | 2 | |
| Trinity Parish Church | Trinity Parish Church | United States of America, Seattle, 609 8th Ave | 2018-07-06 | 2018-07-29 | 2018 | 1 | |
| Trilogy Theatre | Trilogy Theatre | United States of America, New York, 341 W 44th St | 1998-12-02 | 2000-10-21 | 1998–2000 | 2 | |
| Trikkehallen på Kjelsås | Trikkehallen på Kjelsås | Norway, Oslo, Midtoddveien 12 | 2010-06-18 | -- | 2010 | 1 | |
| Trieste | Trieste | Italy, Trieste | 1895-05-15 | -- | 1895–1952 | 6 | |
| Trident - Théâtre de la Butte, Le | Le Trident - Théâtre de la Butte | France, Cherbourg-Octeville, Place Général de Gaulle | 2013-04-09 | 2013-04-10 | 2013 | 1 | |
| Tribühne Norderstedt | Tribühne Norderstedt | Germany, Norderstedt, Jörg Peter Hahn Pl. 1 | 2003-01-21 | -- | 2003–2017 | 2 | |
| Tribeca Performing Arts Center | Tribeca Performing Arts Center | United States of America, New York, 199 Chambers St | 2012-03-10 | -- | 2012 | 1 | |
| Trianon-Theater | Trianon-Theater | Germany, Berlin, Prinz-Friedrich-Karl-Straße 7 | 1914-12-31 | -- | 1914 | 1 | |
| Triad Stage | Triad Stage | United States of America, Greensboro, 232 S Elm St | 2004-04-25 | 2004-05-16 | 2004 | 1 | |
| Trenton | Trenton | United States of America | 1903-03-24 | 1903-03-24 | 1903 | 1 | |
| Trento Teatro Auditorium | Trento Teatro Auditorium | Italy, Trento | 2013-02-28 | 2013-03-03 | 2013 | 1 | |
| Trenčín | Trenčín | Slovak Republic, Trenčín | 1912-05-22 | -- | 1912 | 1 | |
| Tremont Theatre | Tremont Theatre | United States of America, Boston, 88 Tremont Street | 1894-04-18 | 1904-01-26 | 1894–1904 | 3 | |
| Transversales | Transversales - scène conventionnée cirque Verdun | France, Verdun, 1 Place du Marché Couvert | 2015-04-28 | -- | 2015 | 1 | |
| Transteatral | Transteatral | Czech Republic, Prague, V Jámě 1598/4 | 2010-06-06 | -- | 2010 | 1 | |
| Tranebjerg Teater | Tranebjerg Teater | Denmark, Tranebjerg, Samsø | 1907-11-19 | -- | 1907 | 1 | |
| Tramway Theatre | Tramway Theatre | Scotland, Glasgow, 25 Albert Drive | 2019-03-15 | 2019-04-06 | 2019 | 1 | |
| Trafó Kortárs Művészetek Háza | Trafó Kortárs Művészetek Háza | Hungary, Budapest, Liliom u. 41 | 2005-02-18 | 2015-05-25 | 2005–2015 | 4 | |
| Trafalgar Studios | Trafalgar Studios | England, London, 14 Whitehall | 2013-12-17 | 2014-03-22 | 2013–2014 | 2 | |
| Trafalgar Square Theatre | Trafalgar Square Theatre | England, Westminster, London, St Martin's Lane | 1893-02-20 | -- | 1893 | 1 | |
| Toynbee Hall Theatre | Toynbee Hall Theatre | England, London, 28 Commercial St | 1949-02-12 | -- | 1949 | 1 | |
| Toyama prefectural hall for Education and Culturee | Toyama prefectural hall for Education and Culture | Japan, Toyama | 1991-11-21 | 1991-11-22 | 1991 | 1 | |
| Town Hall Theatre | Town Hall Theatre | England, Bishop Auckland, Market Pl | 2005-03-16 | -- | 2005 | 1 | |
| Town Hall Theatre | Town Hall Theatre | Ireland, Galway, 1 Courthouse Square | 2011-05-17 | 2011-05-18 | 2011 | 1 | |
| Town Hall in Caledon | Town Hall in Caledon | South Africa, Caledon | 1929-02-05 | -- | 1929 | 1 | |
| Town Hall Bishop Auckland | Town Hall Bishop Auckland | England, Bishop Auckland, Market Place | 2022-10-14 | -- | 2022 | 1 | |
| Town Hall | Town Hall | Ireland, Westport | 1980-03-08 | 1980-03-09 | 1980 | 1 | |
| Town Hall | Town Hall | Ireland, Skibbereen | 1980-02-18 | 1980-02-19 | 1980 | 1 | |
| Town Hall | Town Hall | Ireland, Dundalk | 1980-03-01 | 1980-03-03 | 1980 | 1 | |
| Town Hall | Town Hall | Ireland, Cavan | 1980-03-05 | 1980-03-06 | 1980 | 1 | |
| Town Assembly | Town Assembly | Malawi, Nkhotakota | 2006-06-10 | -- | 2006 | 1 | |
| Town and Gown Hall | Town and Gown Hall | United States of America, Berkeley | -- | -- | | | |
| Tower Theatre | Tower Theatre | England, London, Bride Lane | 1953-05-15 | 2023-10-08 | 1953–2023 | 16 | |
| Tower Grove Abbey | Tower Grove Abbey | United States of America, Saint Louis, 2336 Tennessee Avenue | 2017-02-02 | 2018-06-23 | 2017–2018 | 2 | |
| Towarzystwo Miłośników Sceny | Towarzystwo Miłośników Sceny | Poland, Warsaw | 1899-01-22 | 1902-03-05 | 1899–1901 | 2 | |
| Toulouse | Toulouse | France, Toulouse | 1897-03-15 | -- | 1897 | 1 | |
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