American soccer writing, history & data.
| Club | Location | Years |
|---|---|---|
| Uhrik Truckers | - | 1924–1965 |
| Ukrainian Nationals | - | 1957 |
| Ukrainian Sport Club | - | 1950–1958 |
| Ukrainian Sport Club Sitch | - | 1951 |
| Ukrainian Sports Club New York | - | 1947 |
| Umbro-86ers Selects | - | 1998–1998 |
| Union A.C. | - | 1894–1894 |
| Union Iron Works | - | 1915–1921 |
| United Caledonians | - | 1909–1910 |
| United German Hungarians of Philadelphia and Vicinity | - | 1910 |
| United States Soldiers | - | 1910–1911 |
| United Steel Workers of America, Local Union 2609 | - | 1943–1945 |
| University of California | - | 1911–1913 |
| U.S. Pro-40 Select | - | 1998–2000 |
| Utah Freezz | - | 1999–2001 |
| Utah Golden Spikers | - | 1976–1976 |
| Utah Pioneers | - | 1976–1976 |