Radio stations in the Regional Municipality of York

CFMS-FM (105.9 FM) is a Canadian radio station, transmitting at 105.9 MHz from Markham, Ontario. The station broadcasts a mixed format, with daytime programming featuring English-language adult contemporary music along with news, weather and traffic information targeted to York Region, and evening programming featuring a multilingual ethnic format in multiple languages, including Cantonese, Filipino, Hindi, Mandarin, Punjabi, Tamil and Urdu.

CIWS-FM is a Canadian radio station, which broadcasts a community radio format on 102.9 FM (formerly 102.7 FM) in Whitchurch–Stouffville, Ontario.

CKDX-FM (88.5 MHz, Hot Country 88.5) is a radio station licensed to Newmarket, Ontario, Canada and serving the Greater Toronto Area. Owned by Evanov Communications (but with a 30% stake held by outside investors under numbered companies), it broadcasts a country format. CKDX's studios are located at 5312 Dundas Street West in the Eatonville neighbourhood of Etobicoke, Toronto, while its transmitter is located near Aurora.

CFIQ (640 AM) is a commercial radio station licensed to Richmond Hill, Ontario, and serving Greater Toronto, Southern Ontario and Western New York with a talk format known as "640 Toronto". Owned by Corus Entertainment, CFIQ's studios are located at the Corus Quay Building in Toronto; despite the station's city of licence being a suburban community north of the city, the transmitter is located in the Niagara Region town of Lincoln, 60 kilometres (37 miles) southwest of Toronto.

CFGI-FM is a Canadian radio station, airing at 92.3 FM in Georgina Island, Ontario. Licensed by the CRTC in 2001, the station airs a community radio format for the area's First Nations community. The station originally began broadcasting at 102.7 FM.

CHEV was a Canadian radio station, which formerly broadcast at 1610 kHz in Toronto, Ontario. A low-power AM station licensed primarily to broadcast special events, the station became best known for airing junior hockey games.

CFU758 is a low-power broadcaster, using the on-air brand 90.7 RAV FM. It is the only licensed high school radio station in Thornhill, Ontario, and is owned and operated by Hodan Nalayeh Secondary School. RAV FM is part of the school's radio broadcasting course, and is one of a small number of Canadian radio stations licensed to a high school.

CKOU-FM, is a Canadian radio station, which operates at 93.7 MHz (FM) in Georgina, Ontario. The station airs a country music format as K Country 93.7. Its studio is located in the community of Keswick.

CHOP-FM is a high school radio station that operates at 102.7 FM in Newmarket, Ontario, Canada.