107.7 FM Estrie

CKOY-FM is a French-language Canadian radio station located in Sherbrooke, Quebec.

Owned and operated by Cogeco, it broadcasts on 107.7 MHz using a directional antenna with an average effective radiated power of 11,000 watts and a peak effective radiated power of 25,000 watts (class C1). The station's transmitter is located at Mount Bellevue.

The station identifies itself as "107,7 FM" and is one of the few full-time FM talk stations in North America to broadcast in stereo.