| Abbreviation | Definition |
|---|---|
| UDRP | Uniform Domain-Name Dispute-Resolution Policy |
| UDV | United Dairyfarmers of Victoria |
| UEA | Ukrainian Economic Association |
| UEA | United Educators Association |
| UEDC | Urban Enterprise Development Collaborative |
| UELAC | United Empire Loyalists' Association of Canada |
| UER | United to End Racism |
| UFA | United Farmers Association |
| UFA | United Fathers of America |
| UFB | United Fund for Belgium |
| UFC | United Friends of the Children |
| UFI | United Families International |
| UFIA | United Federation of Indian Associations |
| UFO | Use For Organization |
| UFP | Uniting For Peace |
| UFPJ | United For Peace and Justice |
| UFSC | Urban Financial Services Coalition |
| UFSCF | Urban Financial Services Coalition Foundation |
| UFT | United Federation Of Teachers |
| UGDA | Upstate Guide Dog Association |