| Umana Venezia | — | — | 1925 | — |
| Unicar Cesena | — | Cesena | — | — |
| Unione Cestistica Casalpusterlengo | — | Casalpusterlengo | 1977 | PalaBanca |
| Unione Cestistica Piacentina | — | Piacenza | 2003 | — |
| Universitario de Trujillo | Copa Perú | — | 10 July 1965 | Estadio Mansiche |
| Universo Treviso Basket | Serie A | Treviso | 2012 | Palaverde |
| Unión Alfonso Ugarte | Copa Perú | — | 2003 | Estadio Jorge Basadre |
| Unión América | Copa Perú | — | — | Estadio Nacional del Perú (1897) |
| Unión Buenos Aires | — | — | 1917 | National Stadium of Peru |
| Unión Callao | Copa Perú | — | 1908 | Estadio Telmo Carbajo |
| Unión Carbone | Liga Regional de Lima y Callao | — | October 1925 | National Stadium of Peru |
| Unión Carolina | Copa Perú | — | 1905 | — |
| Unión Comercio | Peruvian Primera División | — | 1994 | Estadio IPD de Moyobamba |
| Unión Deportivo Ascensión | 2018 Copa Perú | — | 18 July 1959 | — |
| Unión Huaral | Copa Perú | — | 2020 | Estadio Julio Lores Colán |
| Unión Huayllaspanca | Copa Perú | — | 1983 | Estadio Huancayo |
| Unión Juventud | Copa Perú | — | 22 August 1956 | Estadio Manuel Rivera Sanchez |
| Unión Minas | Copa Perú | — | 23 April 1974 | Estadio Daniel Alcides Carrión |
| Unión Minas de Orcopampa | Copa Perú | — | 8 January 1980 | — |
| Unión Mirave | Copa Perú | — | 1977 | Estadio Jorge Basadre |
| Unión Ocopilla | Copa Perú | — | — | Estadio Huancayo |
| Unión Pesquero | Copa Perú | — | — | — |
| Unión Salaverry | Copa Perú | — | 25 May 1939 | Estadio Mariano Melgar |
| Unión San Martín | Copa Perú | — | — | — |
| Unión Supe | Copa Perú | — | 12 October 1954 | — |
| Unión Tarapoto | Peruvian Segunda División | — | 1955 | Estadio Carlos Vidaurre García |
| USE Basket Femminile Empoli | — | Empoli | 1912 | — |
| Utah Jazz | National Basketball Association | Salt Lake City | 1974 | Municipal Auditorium, Caesars Superdome, Loyola Field House, Delta Center, Salt Palace, Thomas & Mack Center |
| Utah Mammoth | — | — | 2024 | Delta Center |
| Vancouver Canucks | — | — | 1970 | Pacific Coliseum, Rogers Arena |
| Vancouver Grizzlies | National Basketball Association | — | 1995 | Rogers Arena |
| Vancouver Millionaires | — | — | 1911 | — |
| Vancouver Whitecaps FC | Major League Soccer | Vancouver | 2009 | BC Place, Empire Field |
| Vegas Golden Knights | — | Paradise | October 2017 | T-Mobile Arena |
| Verga Palermo | — | — | — | — |
| Victoria Cougars | Pacific Coast Hockey Association, Western Canada Hockey League | — | 1911 | — |
| Victoria Libertas Pesaro | Serie A | Pesaro | 1946 | Vitrifrigo Arena |
| Virgen de Chapi FC | Copa Perú | — | 1992 | — |
| Virtus Basket Ariano | — | Ariano Irpino | — | — |
| Virtus Basket Spezia | — | La Spezia | — | — |
| Virtus Cagliari | — | Cagliari | — | — |
| Virtus Eirene Ragusa | — | Ragusa | — | — |
| Virtus Padova | — | Padua | — | — |
| Virtus Pallacanestro Bologna | Serie A | Bologna | 1927 | Virtus Arena |
| Virtus Pallacanestro Imola | — | — | — | — |
| Virtus Viterbo | — | — | 1995 | — |
| Vis Basket Cervia | — | Cervia | — | — |
| Walter Ormeño de Cañete | Copa Perú | — | 1950 | — |