St. George's Bay is a bay in the Canadian province of Nova Scotia. It is located on the north shore of the province fronting both the Nova Scotia peninsula and Cape Breton Island, thus comprising a sub-basin of the Gulf of St. Lawrence. St. George's Bay marks the northern end of the Strait of Canso, one of three outlets for the Gulf of St. Lawrence. It is a busy coastal shipping route on account of the Canso Canal; the Canadian Coast Guard maintains a Vessel Traffic Service (VTS) for the bay called "Canso Traffic" with separation schemes defining sea lanes on nautical charts.