Waupoos Island is a community in Ontario, located within the municipality of Prince Edward County in the northwest quadrant of Prince Edward Bay. A private ferry service across Smith Bay from the hamlet of Waupoos on the mainland is operated by a holiday camp on Waupoos Island. The island is a favored anchorage for experienced sailors familiar with the rocky shoals in the area. The nearest population centre to Waupoos Island is the town of Picton.