Garden Island is an uninhabited 4,990 acre (20 km2) island located in the Beaver Island archipelago in northern Lake Michigan. It is almost wholly owned by the U.S. state of Michigan and is overseen by the Michigan Department of Natural Resources (DNR) as part of the Beaver Islands State Wildlife Research Area. It is accessible by private boat. The Native American name for the island is Minis Gitigaan, which has become Garden Island by direct translation. The Island's Native American cemetery was listed in the National Register of Historic Places in March 1978.

Beaver Island is an island in Lake Michigan in the U.S. state of Michigan. At 55.8 sq mi (145 km2), it is the largest island in Lake Michigan and the third largest island in Michigan after Isle Royale and Drummond Island. The island is located approximately 32 miles (51 km) from the city of Charlevoix. Beaver Island had a total population of 616 at the 2020 census. Beaver Island is part of Charlevoix County.