Simcoe Island is a small island in Lake Ontario, just off Wolfe Island, close to Kingston, Ontario, and Amherst Island. The island in almost completely farmland and can be reached by ferry from Wolfe Island. Part of Frontenac County, it forms the township of Frontenac Islands, Ontario with Wolfe Island and Howe Island, together with smaller, privately owned islands, Garden Island and Horseshoe Island.