Ontario Highway 33 or King's Highway 33 is a provincial highway in Ontario, Canada. It runs from west to east and is 60.9 kilometers (37.8 miles) long. It starts at Highway 62 in Bloomfield in Prince Edward County. At Glenora, the highway crosses the Bay of Quinte by the Glenora Ferry. The Ministry of Transportation of Ontario runs the ferry as a free service. The highway continues on the other side of the bay in Adolphustown. It ends in Kingston.