Hay Bay Boat Launch is a public boat ramp located at 2401 South Shore Road in the rural Greater Napanee area of Ontario, managed in partnership with Cataraqui Conservation.

It provides access to Hay Bay, a productive fishery known for walleye, northern pike, largemouth and smallmouth bass, perch, lake trout, and crappie. Parking is available on site.

The surrounding area is rural, so boaters are advised to arrive self-sufficient with snacks, extra fuel, and water. The historic Old Hay Bay Church is a short distance up the road.