- YAB stands for Yamaguchi Asahi Broadcasting (Japan)
- YAB stands for Youth Advisory Board (various locations)
- YAB stands for Yang Amat Berhormat (Malay: The Most Honorable; honorific)
- YAB stands for Yet Another Binder (computer program/trojan)
- YAB stands for Youth Association for the Blind
- YAB stands for Yokota Air Base, Japan (USAF)
- YAB stands for Young Americans Bank
YAB