WJAC

WJAC may refer to:


 * WJAC-TV, an NBC–affiliated station located in Johnstown, Pennsylvania
 * The former call sign, or a derivative thereof the following stations:
 * WKGE, a radio station (850 AM) in Johnstown previously known as WJAC (AM)
 * WKYE, a radio station (96.5 FM) in Johnstown previously known as WJAC-FM
 * World Junior A Challenge, an international ice hockey tournament
 * Women's Junior Air Corps