| UCAF | Ukraine Children's Aid Fund 
| Others |
| UCAF | Unemployment Compensation Auxiliary Fund
| Others |
| UCAF | UNESCO Contestable Activity Fund
| Others |
| UCAF | United Countries Air Force
| Others |
| UCAF | Uniting Church Adult Fellowship
| Others |
| UCAF | Universal Card Authentication Field
| Others |
| UCAF | Universal Cardholder Authentication Field
| Others |
| UCAF | Universal Cardholder Authorization Field
| Others |
| UCAF | Universal Class Assessment Form
| Others |
| UCAF | University Cheer Air Force
| Others |
| UCAF | University Committee on Academic Freedom
| Others |
| UCAF | University Committee on Academic Freedom (University of California)
| Others |
| UCAF | Upper Columbia Academy Foundation
| Others |
| UCAF | Urban Cultural Arts Foundation
| Others |