WIAC may refer to:
- WIAC (AM), a radio station (740 AM) licensed to San Juan, Puerto Rico
- WTOK-FM, a radio station (102.5 FM) licensed to San Juan, Puerto Rico, which held the call sign WIAC-FM until 2010
- Wisconsin Intercollegiate Athletic Conference
WIAC (740 AM) is a radio station broadcasting a News Talk Information format. Licensed to San Juan, Puerto Rico (a possession of the United States), it serves the Puerto Rico area. The station is currently owned by Bestov Broadcasting Corporation.