| UNO Vienna |
|
| Upper Senegal and Niger |
|
| Upper Silesia |
|
| Upper Volta |
|
| Upper Yafa |
|
| Uruguay |
|
| Utah (UT) |
|
| Uzbekistan |
|
| Uzbekistan, Karakalpakstan |
|
| Vanuatu |
|
| Vatican City |
|
| Venda |
|
| Venezuela |
|
| Vermont (VT) |
|
| Victoria |
|
| Vietcong, National Liberation Front |
|
| Vietnam |
|
| Vietnam, South |
|
| Virgin Islands |
|
| Virgin Islands, British |
|