| University of South Florida | University of South Florida | United States of America, Tampa, 3837 USF Holly Drive | 2018-01-11 | 2018-01-28 | 2018 | 1 | |
| Underhuset fritidsklubb | Underhuset fritidsklubb | Norway, Drøbak | 2001-10-30 | -- | 2001 | 1 | |
| Union Theatre | Union Theatre | England, London, 204 Union St | 2003-03-25 | 2019-02-02 | 2003–2019 | 2 | |
| Ulsteinvik Samfunnshus | Ulsteinvik Samfunnshus | Norway, Ulsteinvik, Vikemyra 2 | 1961-01-28 | -- | 1961–1990 | 6 | |
| Union Theatre | Union Theatre | United States of America, Missoula | 1909-01-14 | 1909-01-14 | 1909 | 1 | |
| Ulstein ungdomsskule | Ulstein ungdomsskule | Norway, Ulsteinvik, Bakkegata 31 | 2006-10-02 | -- | 2006 | 1 | |
| Universidad del Claustro de Sor Juana | Universidad del Claustro de Sor Juana | Mexico, Mexico City, José María Izazaga 92, Centro Histórico, Cuauhtémoc | 2006-04-09 | 2006-08-30 | 2006 | 1 | |
| University of Utah | University of Utah | United States of America, Salt Lake City, Presidents Circle | 1909-11-23 | 1909-11-23 | 1909 | 1 | |
| Ulmer Theater | Ulmer Theater | Germany, Ulm, Herb-v-Karajan-Platz 1 | 1983-06-28 | 2006-07-13 | 1983–2006 | 7 | |
| University of Montana | University of Montana | United States of America, Missoula, 32 Campus Drive | 1972-10-21 | 1972-10-24 | 1972 | 1 | |
| Université Inter-Âges | Université Inter-Âges | France, Versailles, 6 impasse des gendarmes | 2019-06-20 | -- | 2019 | 1 | |
| Utställningen i Arvika | Utställningen i Arvika | Sweden, Arvika | 1911-06-27 | 1911-06-28 | 1911 | 1 | |
| Užhorod | Užhorod | Ukraine, Užhorod | 1911-10-21 | 1911-11-04 | 1911–1941 | 7 | |
| University Of Arkansas Theatre | University Of Arkansas Theatre | United States of America | 2023-02-17 | 2023-02-26 | 2023 | 1 | |
| University Playhouse, Kansas City | University Playhouse, Kansas City | United States of America, Kansas City, Rockhill Road | 1974-08-08 | -- | 1974 | 1 | |
| University Theatre | University Theatre | United States of America, New Haven, 222 York Street | 2014-02-01 | 2022-10-28 | 2014–2022 | 2 | |
| Ulsteinvik | Ulsteinvik | Norway, Ulsteinvik | 1966-04-28 | 1995-11-16 | 1966–1997 | 4 | |
| Uttam Manch | Uttam Manch | India, Kolkata, Manohar Pukur Road, Hazra | 2016-- | -- | 2016 | 1 | |
| Urquiza | Urquiza | Uruguay, Montevideo | 1907-10-10 | -- | 1907 | 1 | |
| University Theatre | University Theatre | United States of America, Iowa City, University of Iowa | 1937-02-22 | 1965-04-03 | 1937–1965 | 3 | |
| University Workshop Theatre, Louisiana State University | University Workshop Theatre, Louisiana State University | United States of America, Baton Rouge | 1947-04-24 | 1947-04-26 | 1947 | 1 | |
| Umewaka nōgaku gakuin kaikan | Umewaka nōgaku gakuin kaikan (Umewaka Nohgaku Gakuin Kaikan Theater) | Japan, Tokyo, 2-6-14 Higashi-nakano, Nakano-ku | 2005-08-09 | 2008-05-31 | 2005–2013 | 4 | |
| Utica | Utica | United States of America, Utica | 1903-10-08 | 1903-10-08 | 1903 | 1 | |
| Ueneshallen | Ueneshallen | Norway, Flekkefjord, Tunveien 18 | 1997-09-27 | 1997-10-08 | 1997 | 2 | |
| University Theatre | University Theatre | United States of America, Sacramento, 6000 J Street Shasta Hall | 2004-11-05 | 2004-11-14 | 2004 | 1 | |
| Uppsala Stadsteater | Uppsala Stadsteater | Sweden, Uppsala, Kungsgatan 53 | 1955-03-18 | 2013-05-08 | 1955–2013 | 4 | |
| University of Calgary - Department of Drama | University of Calgary, Department of Drama | Canada, Calgary, Craigie Hall 2500 University Drive NW | 1975-02-26 | 1978-03-18 | 1975–1978 | 2 | |
| Ufa-Theater Friedrichstrasse | Ufa-Theater Friedrichstrasse | Germany, Berlin, Friedrichstrasse 180 | 1935-12-21 | -- | 1935 | 1 | |
| University of Wisconsin | University of Wisconsin | United States of America, Madison | 2006-10-07 | -- | 2006 | 1 | |
| University Auditorium, Nnamdi Azikiwe University | University Auditorium, Nnamdi Azikiwe University | Nigeria, Awaka | 2002-09-11 | 2002-09-11 | 2002 | 1 | |
| UIC Theatre | UIC Theatre | United States of America, Chicago, 1044 W Harrison St | 2010-10-01 | 2010-10-10 | 2010 | 1 | |
| Unity Theatre | Unity Theatre | England, London, Goldington St | 1963-11-29 | 2008-11-01 | 1963–2008 | 2 | |
| Uddevalla | Uddevalla | Sweden, Uddevalla | 1991-04-02 | 1991-04-03 | 1991 | 1 | |
| Union, Théâtre de l' | Théâtre de l'Union | France, Limoges, 20 Rue des Coopérateurs | 2012-10-22 | 2012-10-23 | 2012 | 1 | |
| Utiel | Utiel | Spain, Utiel | 2010-09-10 | -- | 2010 | 1 | |
| Uppingham Theatre | Uppingham Theatre | England, Oakham, Leicestershire, 32 Stockerston Road, Uppingham | 2014-01-31 | 2014-10-17 | 2014 | 2 | |
| University of Minnesota | University of Minnesota | United States of America, Morris, University of Minnesota, Morris, East 4th Street, Morris, Minnesota, USA | -- | -- | | | |
| Ungdomshuset | Ungdomshuset | Norway, Fiskåbygd | 1952-03-01 | -- | 1952 | 1 | |
| Urania National Film Theatre | Urania National Film Theatre | Hungary, Budapest, Rakoczi ut. 21 | 2018-01-23 | 2018-01-23 | 2018 | 1 | |
| Ulefoss | Ulefoss | Norway, Ulefoss | 1991-09-30 | -- | 1991 | 1 | |
| Újvidéki Színház (Novosadsko pozorište) | Újvidéki Színház (Novosadsko pozorište) | Serbia, Novi Sad, Jovana Subotića 3-5 | 1981-04-30 | -- | 1981–2013 | 4 | |
| USF Verftet | USF Verftet | Norway, Bergen, Georgernes Verft 12 | 1985-03-28 | 2011-07-09 | 1985–2011 | 8 | |
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