WYSU (88.5 FM, "Radio You Need to Know") is a National Public Radio member radio station. Licensed to serve Youngstown, Ohio, United States, the station is currently owned by Youngstown State University.

WYSU also hosts the Youngstown Radio Reading Service, which broadcasts on a subcarrier.

WYSU simulcasts on two low-power transmitters: W201DP in Ashtabula, broadcasting on 88.1 MHz with 38 watts, and W209CQ in New Wilmington, Pennsylvania, broadcasting on 89.7 MHz with 27 watts.