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