CBK is a Canadian public radio station, licensed to Watrous, Saskatchewan. It broadcasts the CBC Radio One network on an assigned frequency of 540 kHz to most of southern and central Saskatchewan. Its studios are located at the CBC's broadcast centre at 2440 Broad Street in Regina, with an additional bureau in the Saskatoon Co-op building on 4th Avenue South in Saskatoon. The Regina facility also houses CBK-FM and CBKT-DT.