WHAB (89.1 FM) is a high school radio station licensed to serve Acton, Massachusetts. The station is owned by Acton-Boxborough Regional High School and licensed to the Acton-Boxborough Regional School District. It airs a high school radio format. WHAB is one of more than a dozen FCC-licensed high school radio stations in the state of Massachusetts.
The station was assigned the WHAB call letters by the Federal Communications Commission.
After technical issues that left the station silent for a time in the early 1990s, WHAB returned to full-time broadcasting in 1995. WHAB goes LIVE during the school year, on 89.1 FM, Acton Community Television, and the High School Cafeteria.