Mackinac Island State Park in the context of Fort Michilimackinac State Park

Mackinac Island (/ˈmækənɔː/ MAK-ə-naw, locally /ˈmækənə/ MAK-ə-nə; French: Île Mackinac; Ojibwe: Mishimikinaak ᒥᔑᒥᑭᓈᒃ; Ottawa: Michilimackinac) is an island and resort area, covering 4.35 square miles (11.3 km) in land area, in the U.S. state of Michigan. The name of the island in Odawa is Michilimackinac and "Mitchimakinak" in Ojibwemowin, meaning "Great Turtle". It is located in Lake Huron, at the eastern end of the Straits of Mackinac, between the state's Upper and Lower Peninsulas. The island was long home to an Odawa settlement and previous indigenous cultures before European colonization began in the 17th century. It was a strategic center of the fur trade around the Great Lakes. Based on a former trading post, Fort Mackinac was constructed on the island by the British during the American Revolutionary War. It was the site of two battles during the War of 1812 before the northern border was settled and the US gained this island in its territory.

In the late 19th century, Mackinac Island became a popular tourist attraction and summer colony. Many of the structures on the island have undergone extensive historical preservation and restoration. Because of its historic significance, the entire island is listed as a National Historic Landmark. It is well known for numerous cultural events; a wide variety of architectural styles, including the Victorian-era Grand Hotel; and its ban on almost all motor vehicles, with exceptions only for city emergency vehicles (ambulance, police cars and fire trucks), city service vehicles and snowmobiles in winter. More than 80 percent of the island is preserved as Mackinac Island State Park.

Fort Mackinac (/ˈmækənɔː/ MAK-ə-naw) is a former British and American military outpost garrisoned from the late 18th century to the late 19th century in the city of Mackinac Island, Michigan, on Mackinac Island. The British built the fort during the American Revolutionary War to control the strategic Straits of Mackinac between Lake Michigan and Lake Huron, and by extension the fur trade on the Great Lakes. The British did not relinquish the fort until thirteen years after the end of the American Revolutionary War.Fort Mackinac later became the scene of two strategic battles for control of the Great Lakes during the War of 1812. During most of the 19th century, it served as an outpost of the United States Army. Closed in 1895, the fort has been adapted as a museum on the grounds of Mackinac Island State Park.