| Acronym | Definition |
|---|
| Yaac➣Yet Another Compiler Compiler |
| Yaac➣Young Adult Advisory Council (various locations) |
| Yaac➣York-Adams Area Council (Pennsylvania) |
| Yaac➣Yet Another Audio Converter (software) |
| Yaac➣Young Alumni Advisory Committee (various locations) |
| Yaac➣Yet Another APRS (Automatic Packet Reporting System) Client (amateur radio software) |
| Yaac➣Yuma Area Agriculture Council (Yuma, AZ) |