KSDW (88.9 FM) is a Christian radio station licensed to Temecula, California, and serving the Temecula Valley and San Diego County. The station is owned and operated by Calvary Chapel Costa Mesa, and studios are co-located in Santa Ana with sister station KWVE-FM.

KSDW's format consists mainly of contemporary worship music but also features Bible teaching programs of churches in the Temecula Valley, greater San Diego, and throughout the nation.

• Official website
• Facility details for Facility ID 52141 (KSDW) in the FCC Licensing and Management System
• KSDW in Nielsen Audio's FM station database