English
Proper noun
Sugar Island
- An island of the Thousand Islands region, St. Lawrence River, United Counties of Leeds and Grenville, Ontario, Canada.
- An island or other place in the United States:
- An island of Moosehead Lake, Piscataquis County, Maine.
- A township and island in the St. Marys River in Chippewa County, Michigan.
- An island in the Detroit River in Grosse Ile Township, Wayne County, Michigan.
- An island of Lake Erie, Ottawa County, Ohio.
- An unincorporated community in the village of Summit, Waukesha County, Wisconsin.