| Acronym | Definition |
|---|
| UCAC➣Undeb Cenedlaethol Athrawon Cymru (National Union of Teachers of Wales) |
| UCAC➣USNO CCD Astrograph Catalog |
| UCAC➣University of California Archivists Council |
| UCAC➣University of Calgary Athletics Club (Calgary, Alberta, Canada) |
| UCAC➣University of Calgary Airsoft Club (gun club; Canada) |
| UCAC➣University Construction Advisory Committee (California State University, Chico) |