| Union Theater | Union Theater | United States of America, Madison, 800 Langdon St | 1950-05-02 | -- | 1950 | 1 | |
| Ulvik | Ulvik | Norway, Ulvik | 1951-04-28 | -- | 1951 | 1 | |
| Ungdomshuset | Ungdomshuset | Norway, Fiskåbygd | 1952-03-01 | -- | 1952 | 1 | |
| Utstillingshallen | Utstillingshallen | Norway, Molde | 1952-03-03 | -- | 1952–1956 | 3 | |
| Unterländische Volksbühne Bruchsal | Unterländische Volksbühne Bruchsal | Germany, Bruchsal | 1954-09-15 | -- | 1954 | 1 | |
| Uppsala Stadsteater | Uppsala Stadsteater | Sweden, Uppsala, Kungsgatan 53 | 1955-03-18 | 2013-05-08 | 1955–2013 | 4 | |
| Upsala Stadsteater | Upsala Stadsteater | Sweden, Gävle, Teaterplan 1 | 1955-04-12 | -- | 1955–1987 | 4 | |
| Union Hall, University of Adelaide | Union Hall, University of Adelaide | Australia, Adelaide, North Terrace | 1960-08-31 | 1960-11-26 | 1960 | 2 | |
| Ulsteinvik Samfunnshus | Ulsteinvik Samfunnshus | Norway, Ulsteinvik, Vikemyra 2 | 1961-01-28 | -- | 1961–1990 | 6 | |
| University Playhouse, Arizona State University | University Playhouse, Arizona State University | United States of America, Tempe, 1001 S Forest Mall | 1963-02-13 | 1963-02-22 | 1963 | 1 | |
| University Theatre, University of Arizona | University Theatre, University of Arizona (University Theatre) | United States of America, Tucson | 1963-04-30 | 1963-05-04 | 1963 | 1 | |
| University of Waterloo | University of Waterloo | Canada, Waterloo, 200 University Ave W | 1963-10-22 | -- | 1963 | 1 | |
| University Theatre, Indiana University | University Theatre, Indiana University | United States of America, Bloomington, 275 North Jordan Avenue | 1963-11-04 | 2019-11-17 | 1963–2019 | 5 | |
| Unity Theatre | Unity Theatre | England, London, Goldington St | 1963-11-29 | 2008-11-01 | 1963–2008 | 2 | |
| Ufimskij russkij dramatičeskij teatr | Ufimskij russkij dramatičeskij teatr (Ufa Russian Dramatic Theatre) | Russia, Ufa, Ulitsa Zaki Validi, 34 | 1964-11- | -- | 1964 | 1 | |
| University Theatre | University Theatre | United States of America, Washington D.C., The Catholic University of America | 1965-03-19 | 1965-04-03 | 1965 | 1 | |
| Ulsteinvik | Ulsteinvik | Norway, Ulsteinvik | 1966-04-28 | 1995-11-16 | 1966–1997 | 4 | |
| Ungdomsskolen | Ungdomsskolen | Norway, Leikanger, Kyrkjevegen 6 | 1969-10-03 | 1969-10-04 | 1969 | 1 | |
| University Theatre, University of Calgary | The University Theatre, University of Calgary | Canada, Calgary | 1970-02-11 | 1970-02-15 | 1970 | 1 | |
| University Theatre at UGA | University Theatre at UGA | United States of America, Athens, Corner of Lumpkin and Baldwin | 1970-11-18 | 1970-11-21 | 1970 | 1 | |
| University of Montana | University of Montana | United States of America, Missoula, 32 Campus Drive | 1972-10-21 | 1972-10-24 | 1972 | 1 | |
| University Playhouse, Kansas City | University Playhouse, Kansas City | United States of America, Kansas City, Rockhill Road | 1974-08-08 | -- | 1974 | 1 | |
| 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 | |
| Universidad Nacional Autónoma de México | Universidad Nacional Autónoma de México (UNAM) | Mexico, Ciudad de México, Av Universidad 3000, Copilco Universidad, Coyoacán. | 1976-03-16 | -- | 1976 | 1 | |
| 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 of America, Davis | 1979-03-15 | 1981-05-30 | 1979–1981 | 2 | |
| Újvidéki Színház (Novosadsko pozorište) | Újvidéki Színház (Novosadsko pozorište) | Serbia, Novi Sad, Jovana Subotića 3-5 | 1981-04-30 | -- | 1981–2013 | 4 | |
| Ulmer Theater | Ulmer Theater | Germany, Ulm, Herb-v-Karajan-Platz 1 | 1983-06-28 | 2006-07-13 | 1983–2006 | 7 | |
| UCSB Main Theatre | UCSB Main Theatre | United States of America, Santa Barbara | 1984-07-19 | 1984-07-28 | 1984 | 1 | |
| USF Verftet | USF Verftet | Norway, Bergen, Georgernes Verft 12 | 1985-03-28 | 2011-07-09 | 1985–2011 | 8 | |
| University of Southern Maine | University of Southern Maine | United States of America, Gorham | 1986-04-11 | 1986-04-12 | 1986 | 1 | |
| Utansjö | Utansjö | Sweden, Utansjö | 1989-10-01 | 1989-10-01 | 1989 | 1 | |
| Ulricehamn | Ulricehamn | Sweden, Ulricehamn | 1989-11-24 | 1989-11-24 | 1989–1993 | 2 | |
| Universitetet i Urbygningen | Universitetet i Urbygningen | Norway, Oslo, Karl Johans gate 47 | 1990-09-07 | 1990-09-14 | 1990–2006 | 3 | |
| Umeå | Umeå | Sweden, Umeå | 1990-10-26 | 1990-10-27 | 1990 | 1 | |
| Uddevalla | Uddevalla | Sweden, Uddevalla | 1991-04-02 | 1991-04-03 | 1991 | 1 | |
| Ulefoss | Ulefoss | Norway, Ulefoss | 1991-09-30 | -- | 1991 | 1 | |
| Ungarns ambassade | Ungarns ambassade | Norway, Oslo, Sophus Lies gate 3 | 1992-- | 1993-- | 1992 | 1 | |
| Ungdommens hus | Ungdommens hus | Norway, Tromsø | 1994-03-23 | -- | 1994 | 1 | |
| Utrechtse School, De | De Utrechtse School | Netherlands, Utrecht, Boorstraat 107 | 1994-12-17 | -- | 1994 | 1 | |
| Ueneshallen | Ueneshallen | Norway, Flekkefjord, Tunveien 18 | 1997-09-27 | 1997-10-08 | 1997 | 2 | |
| Ulefoss samfunnshus | Ulefoss samfunnshus | Norway, Nome, Ulefossgata 2 | 1997-10-16 | -- | 1997 | 1 | |
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