KWBY (940 AM) is a commercial radio station licensed to Woodburn, Oregon, and serves the Portland metropolitan area. Owned by Bustos Media, through licensee Bustos Media Holdings, LLC, it broadcast a Regional Mexican format known as "".
Programming is heard around the clock on 250-watt FM translator K227DU at 93.3 MHz in Salem.
The station signed on the air on July 10, 1964. Its original call sign was KWRC. It began as a daytimer station, powered from dawn to dusk at 250 watts but required to go off the air at night. It aired a middle of the road (MOR) format of popular music, news and sports.
In 1988, it changed its call letters to KWBY. It later switched to Regional Mexican music with Spanish-language programming for Oregon's growing Hispanic population.