| YAC | Cat Lake, Ontario, Canada 
| Others |
| YAC | Yahoo Audio Conferencing
| Others |
| YAC | Yakima Athletic Club
| Others |
| YAC | Yale Alumni Chorus
| Others |
| YAC | Yards After Catch
| Others |
| YAC | Yards After the Catch
| Others |
| YAC | Yeast Accentuated Chromosome
| Others |
| YAC | Yeast Artificial Chromosome
| Others |
| YAC | Yeast Artificial Chromosomes
| Others |
| YAC | Yeast Artificial Cosmid
| Others |
| YAC | YellowJacket Activities Council
| Others |
| YAC | Yes Another Cms
| Others |
| YAC | Yet another Cache
| Others |
| YAC | Yet Another Caller
| Others |
| YAC | Yet Another Caller-ID program
| Others |
| YAC | Yet Another Camera
| Others |
| YAC | Yet Another Cemetery
| Others |
| YAC | Yet Another Cleaner
| Others |
| YAC | Yet Another Comic
| Others |
| YAC | Yet Another Conference
| Others |
| YAC | Yet Another Counter
| Others |
| YAC | Yoknapatawpha Arts Council
| Others |
| YAC | Yolo Atari Club
| Others |
| YAC | Yorktown Athletic Club
| Others |
| YAC | You Are Cool
| Others |
| YAC | You Are Crazy
| Others |
| YAC | You Available to Chat
| Others |
| YAC | You're Always Connected
| Others |
| YAC | Young Active Christians
| Others |
| YAC | Young Adult Chrsyalis
| Others |
| YAC | Young Adult Crowd
| Others |
| YAC | Young Adults Class
| Others |
| YAC | Young Adults Connecting
| Others |
| YAC | Young Adults in Church
| Others |
| YAC | Young Agents Council
| Others |
| YAC | Young American Comics
| Others |
| YAC | Young Archaeologists
| Others |
| YAC | Young Archaeologists Club
| Others |
| YAC | Young Archaeologists' Club
| Others |
| YAC | Young architects competitions
| Others |
| YAC | Young Audiences of Connecticut
| Others |
| YAC | Your Area Code
| Others |
| YAC | Youth Action Committee
| Others |
| YAC | Youth Action Council
| Others |
| YAC | Youth Activities Council
| Others |
| YAC | Youth Activity Center
| Others |
| YAC | Youth Activity Council
| Others |
| YAC | Youth Adult Committee
| Others |
| YAC | Youth Advisors Council
| Others |
| YAC | Youth Advisory Commission
| Others |
| YAC | Youth Advisory Committee
| Others |
| YAC | Youth Advisory Council
| Others |
| YAC | Youth After Church
| Others |
| YAC | Youth Alive in Christ
| Others |
| YAC | Youth Ambassador of Christ
| Others |
| YAC | Youth and Adults for Community
| Others |
| YAC | Youth Annual Conference
| Others |
| YAC | Youth Arctic Coalition
| Others |
| YAC | Youth Arts Coalition
| Others |
| YAC | Youth Arts Collective
| Others |
| YAC | Youth At Church
| Others |