WLEN (103.9 FM) is a radio station in Adrian, Michigan, broadcasting a full-service adult contemporary format with a heavy emphasis on local news, weather and sports.

With WABJ, WQTE and WBZV's sale to a Tennessee-based broadcaster in late 2019, it is now the only locally owned commercial radio station in Lenawee County.

WLEN began as a block-programmed station typical of small towns in the 1960s, airing MOR, country music and Top 40 at different times of the day.

Notable personalities include sports broadcasters John Koehn, Jeff Bowman, Chris Renwick and Patt Hayes.

The station also features a popular Tejano music show, "Radio Picoso", on Sunday afternoons, hosted by Herbey Atkinson.