Michael Dousman (1771–1854) was an American fur trader and merchant with business interests in and around Mackinac Island during the War of 1812 period.
In the years before the War of 1812, he was a prominent trader on Mackinac Island, with connections and interests among the Ojibwe on both sides of the border, and business with British Canadians.
Dousman was paroled on condition that he gather all Mackinac Island civilians in a safe place and not provide intelligence to the U.S. Army.
Dousman's fulfillment of these conditions resulted in the British and Canadians accepting him as a key ally in their quest to retain control over the Straits of Mackinac area throughout the war.
Dousman became more successful than ever, especially as British Canadians were prohibited from trading on the United States side of the border between the countries, unlike the open conditions before the war.