Fort Miami was a fort on the bank of the St. Joseph River at the site of the present-day city of St. Joseph, Michigan, in the United States. It was established in November 1679 by a band of French explorers led by René Robert Cavelier, Sieur de La Salle on the banks of what was then called the River Miami as a mission and Indian trading outpost. His soldiers destroyed it the next year. It was rebuilt in winter 1680-81.