| Üçüncü Tiyatro | Üçüncü Tiyatro (Uucncu Tiyatro) | Turkey, ULUS / ANKARA, İstiklal Cad. Çirmen Sokak Vakıf Apt. No:8 | -- | -- | | | |
| University of Dhaka | University of Dhaka | Bangladesh, Dacca, Ramna | -- | -- | | | |
| Ukkel | Ukkel | Belgium, Ukkel | -- | -- | | | |
| Ural'sk | Ural'sk | Russia, Ural'sk | -- | -- | | 1 | |
| Upsala Teater | Upsala Teater | Sweden, Uppsala | 1871-11-21 | 1905-03-16 | 1871–1905 | 9 | |
| Uleåborg Teater | Uleåborg Teater | Finland, Uleåborg (Oulu) | 1880-08-13 | 1885-11-08 | 1880–1885 | 2 | |
| Umeås Theater | Umeås Theater | Sweden, Umeå | 1885-06-12 | -- | 1885 | 1 | |
| Uleåborg | Uleåborg | Finland, Uleåborg | 1897-03-05 | -- | 1897 | 1 | |
| Uusi Teatteri | Uusi Teatteri | Sweden, Stockholm, Västmannagatan 56 | 1898-- | -- | 1898–1916 | 2 | |
| Utica | Utica | United States, Utica | 1903-10-08 | 1903-10-08 | 1903 | 1 | |
| Urquiza | Urquiza | Uruguay, Montevideo | 1907-10-10 | -- | 1907 | 1 | |
| Unió republicana | Unió republicana | Spain, Barcelona, Gracia | 1908-04-28 | -- | 1908 | 2 | |
| Union Theatre | Union Theatre | United States, Bakersfield | 1908-06-27 | 1908-06-27 | 1908 | 1 | |
| Université Populaire du Faubourg Saint-Antoine | Université Populaire du Faubourg Saint-Antoine | France, Paris, 157 rue du Faubourg Saint-Antoine | 1908-10-04 | -- | 1908 | 1 | |
| Union Theatre | Union Theatre | United States, Missoula | 1909-01-14 | 1909-01-14 | 1909 | 1 | |
| University of Utah | University of Utah | United States, Salt Lake City, Presidents Circle | 1909-11-23 | 1909-11-23 | 1909 | 1 | |
| Unitarian Parish House | Unitarian Parish House | United States, Anaconda | 1910-05-25 | 1910-05-25 | 1910 | 1 | |
| University of Texas, The | The University of Texas | United States, Austin, 1 University Station | 1911-02-01 | 1911-02-01 | 1911 | 1 | |
| United States | United States | United States, United States | 1911-05-02 | 1952-03-09 | 1911–2017 | 46 | |
| Ungdomsmötet i Lidköping | Ungdomsmötet i Lidköping | Sweden, Lidköping | 1911-06-23 | -- | 1911 | 1 | |
| Ungdomsmötet i Karlskoga | Ungdomsmötet i Karlskoga | Sweden, Karlskoga | 1911-06-25 | -- | 1911 | 1 | |
| Utställningen i Arvika | Utställningen i Arvika | Sweden, Arvika | 1911-06-27 | 1911-06-28 | 1911 | 1 | |
| Uppsala | Uppsala | Sweden, Uppsala | 1911-07-11 | 1911-07-12 | 1911–1952 | 4 | |
| Ungdomsmötet Amundön | Ungdomsmötet Amundön | Sweden, Göteborg | 1911-07-16 | -- | 1911 | 1 | |
| Užhorod | Užhorod | Ukraine, Užhorod | 1911-10-21 | 1911-11-04 | 1911–1941 | 7 | |
| Ushigome, Koto Engekikan Hall | Ushigome, Koto Engekikan Hall | Japan, Tokyo | 1912-01-30 | 1912-01-31 | 1912 | 1 | |
| Újpest | Újpest | Hungary, Budapest, Újpest | 1912-11-01 | -- | 1912–1913 | 2 | |
| Ushigome Geijutsu Club | Ushigome Geijutsu Club | Japan, Tokyo | 1918-04-21 | 1918-04-22 | 1918 | 1 | |
| University Auditorium | University Auditorium | United States, Columbia, Columbia | 1920-04-05 | -- | 1920 | 1 | |
| University of North Carolina | University of North Carolina | United States, Chapel Hill, 209 South Road | 1920-11-20 | 1921-11-19 | 1920–1921 | 2 | |
| Ushigome Kaikan Hall | Ushigome Kaikan Hall | Japan, Tokyo | 1924-02-07 | 1924-02-14 | 1924 | 1 | |
| Unitarian Assembly Theatre | Unitarian Assembly Theatre | United States, Minneapolis | 1928-12-12 | 1928-12-13 | 1928–1934 | 3 | |
| University Theatre University of Minnesota, The | The University Theatre University of Minnesota | United States, Minneapolis | 1934-07-05 | 1934-07-07 | 1934 | 1 | |
| University Theatre, Bascom Hall | University Theatre, Bascom Hall | United States, Madison | 1935-11-04 | -- | 1935 | 2 | |
| Ufa-Theater Friedrichstrasse | Ufa-Theater Friedrichstrasse | Germany, Berlin, Friedrichstrasse 180 | 1935-12-21 | -- | 1935 | 1 | |
| Umělecká beseda na Malé straně | Umělecká beseda na Malé straně | Czech Republic, Prague | 1936-03-11 | -- | 1936 | 1 | |
| University Theatre | University Theatre | United States, Iowa City, University of Iowa | 1937-02-22 | 1965-04-03 | 1937–1965 | 3 | |
| Uljanovskij dramatičeskij teatr | Uljanovskij dramatičeskij teatr | Russia, Uljanovsk | 1940-10- | -- | 1940–1990 | 2 | |
| Umělecká beseda na Malé straně | Umělecká beseda na Malé straně | Czech Republic, Prague | 1940-11-16 | -- | 1940 | 1 | |
| Union Theatre | Union Theatre | Australia, Parkville, University of Melbourne, Union House, Ground Floor, Union Rd | 1945-07-02 | -- | 1945–1947 | 2 | |
| University Theatre | University Theatre, Department of Theatre and Dance | United States, Boulder, 261 UCB | 1947-01-30 | 2017-11-12 | 1947–2017 | 4 | |
| University Workshop Theatre, Louisiana State University | University Workshop Theatre, Louisiana State University | United States, Baton Rouge | 1947-04-24 | 1947-04-26 | 1947 | 1 | |
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