WLAK

WLAK may refer to:


 * WLAK (AM), a radio station (1260 AM) licensed to serve Emery, Wisconsin, United States
 * WZBU, a radio station (1530 AM) licensed to serve New Holstein, Wisconsin, which held the call sign WLAK from 2015 to 2023
 * WHUN-FM, a radio station (103.5 FM) licensed to serve Huntingdon, Pennsylvania, United States, which held the call sign WLAK from 1989 to 2015
 * WLIT-FM, a radio station (93.9 FM) licensed to serve Chicago, Illinois, United States, which held the call sign WLAK from 1972 to 1989
 * W.L.A.K., American Christian music group