| Ukranian Orthodox Centre | Ukranian Orthodox Centre | Canada, Kamloops | 1978-01-31 | -- | 1978 | 1 | |
| University Theatre, University of California | University Theatre, University of California | United States, Davis | 1979-03-15 | 1981-05-30 | 1979–1981 | 2 | |
| Unterländische Volksbühne Bruchsal | Unterländische Volksbühne Bruchsal | Germany, Bruchsal | 1954-09-15 | -- | 1954 | 1 | |
| Ulricehamn | Ulricehamn | Sweden, Ulricehamn | 1989-11-24 | 1989-11-24 | 1989–1993 | 2 | |
| University of Waterloo | University of Waterloo | Canada, Waterloo, 200 University Ave W | 1963-10-22 | -- | 1963 | 1 | |
| Ungarns ambassade | Ungarns ambassade | Norway, Oslo, Sophus Lies gate 3 | 1992-- | 1993-- | 1992 | 1 | |
| University of South Florida | University of South Florida | United States, Tampa, 3837 USF Holly Drive | 2018-01-11 | 2018-01-28 | 2018 | 1 | |
| Utrechtse School, De | De Utrechtse School | Netherlands, Utrecht, Boorstraat 107 | 1994-12-17 | -- | 1994 | 1 | |
| Unterschleißheim Bürgerhaus | Unterschleißheim Bürgerhaus | Germany, Unterschleißheim, Rathausplatz 1 | 1997-10-25 | 2023-05-02 | 1997–2023 | 2 | |
| University of Texas, The | The University of Texas | United States, Austin, 1 University Station | 1911-02-01 | 1911-02-01 | 1911 | 1 | |
| University Theatre University of Minnesota, The | The University Theatre University of Minnesota | United States, Minneapolis | 1934-07-05 | 1934-07-07 | 1934 | 1 | |
| Ulefoss samfunnshus | Ulefoss samfunnshus | Norway, Nome, Ulefossgata 2 | 1997-10-16 | -- | 1997 | 1 | |
| Union Theatre | Union Theatre | United States, Missoula | 1909-01-14 | 1909-01-14 | 1909 | 1 | |
| Université Inter-Âges | Université Inter-Âges | France, Versailles, 6 impasse des gendarmes | 2019-06-20 | -- | 2019 | 1 | |
| Uffculme Village Hall | Uffculme Village Hall | England, Uffculme, Devon | 2003-03-19 | -- | 2003 | 1 | |
| Upsala Stadsteater | Upsala Stadsteater | Sweden, Gävle, Teaterplan 1 | 1955-04-12 | -- | 1955–1987 | 4 | |
| Ullersmo fengsel, Krogsrud avdeling | Ullersmo fengsel, Krogsrud avdeling | Norway, Kløfta, Ullersmoveien 2 | 2012-11-14 | -- | 2012 | 2 | |
| Upstairs at the Gatehouse | Upstairs at the Gatehouse | England, London, Highgate Village | 2015-10-13 | 2015-10-17 | 2015 | 1 | |
| Ugala Teater | Ugala Teater | Estonia, Viljandi, Vaksali 7 | 2007-05-12 | 2011-05-16 | 2007–2010 | 3 | |
| Ushigome Geijutsu Club | Ushigome Geijutsu Club | Japan, Tokyo | 1918-04-21 | 1918-04-22 | 1918 | 1 | |
| Upsala Teater | Upsala Teater | Sweden, Uppsala | 1871-11-21 | 1893-04-09 | 1871–1893 | 8 | |
| UCSB Main Theatre | UCSB Main Theatre | United States, Santa Barbara | 1984-07-19 | 1984-07-28 | 1984 | 1 | |
| University of Sheffield Drama Studio | University of Sheffield Drama Studio | England, Sheffield, Shearwood Rd | 2007-09-24 | 2018-09-22 | 2007–2018 | 3 | |
| Union Theatre | Union Theatre | Australia, Parkville, University of Melbourne, Union House, Ground Floor, Union Rd | 1945-07-02 | -- | 1945–1947 | 2 | |
| Újpest | Újpest | Hungary, Budapest, Újpest | 1912-11-01 | -- | 1912–1913 | 2 | |
| Unitarian Universalist Church of Raleigh | Unitarian Universalist Church of Raleigh | United States, Raleigh, 3313 Wade Ave | 2013-04-12 | 2013-04-13 | 2013 | 1 | |
| Underhuset fritidsklubb | Underhuset fritidsklubb | Norway, Drøbak | 2001-10-30 | -- | 2001 | 1 | |
| Utica | Utica | United States, Utica | 1903-10-08 | 1903-10-08 | 1903 | 1 | |
| Ufa-Theater Friedrichstrasse | Ufa-Theater Friedrichstrasse | Germany, Berlin, Friedrichstrasse 180 | 1935-12-21 | -- | 1935 | 1 | |
| University of Freiburg Aula | University of Freiburg Aula | Germany, Freiburg | 2002-12-12 | -- | 2002 | 1 | |
| Ulsteinvik Samfunnshus | Ulsteinvik Samfunnshus | Norway, Ulsteinvik, Vikemyra 2 | 1961-01-28 | -- | 1961–1990 | 6 | |
| Ulstein ungdomsskule | Ulstein ungdomsskule | Norway, Ulsteinvik, Bakkegata 31 | 2006-10-02 | -- | 2006 | 1 | |
| Union, Théâtre de l' | Théâtre de l'Union | France, Limoges, 20 Rue des Coopérateurs | 2012-10-22 | 2012-10-23 | 2012 | 1 | |
| Utansjö | Utansjö | Sweden, Utansjö | 1989-10-01 | 1989-10-01 | 1989 | 1 | |
| Ulmer Theater | Ulmer Theater | Germany, Ulm, Herb-v-Karajan-Platz 1 | 1983-06-28 | 2006-07-13 | 1983–2006 | 7 | |
| Utställningen i Arvika | Utställningen i Arvika | Sweden, Arvika | 1911-06-27 | 1911-06-28 | 1911 | 1 | |
| University Playhouse, Kansas City | University Playhouse, Kansas City | United States, Kansas City, Rockhill Road | 1974-08-08 | -- | 1974 | 1 | |
| University Theatre at UGA | University Theatre at UGA | United States, Athens, Corner of Lumpkin and Baldwin | 1970-11-18 | 1970-11-21 | 1970 | 1 | |
| University of Wisconsin - Green Bay | University of Wisconsin - Green Bay | United States, Green Bay, 2420 Nicolet Dr | 2008-02-29 | 2008-03-07 | 2008 | 1 | |
| Ulsteinvik | Ulsteinvik | Norway, Ulsteinvik | 1966-04-28 | 1995-11-16 | 1966–1997 | 4 | |
| University Playhouse, Arizona State University | University Playhouse, Arizona State University | United States, Tempe, 1001 S Forest Mall | 1963-02-13 | 1963-02-22 | 1963 | 1 | |
| Urquiza | Urquiza | Uruguay, Montevideo | 1907-10-10 | -- | 1907 | 1 | |
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