Fort St. Joseph may refer to:
In Canada Fort St. Joseph (Ontario), on St. Joseph Island at southern end of the St. Marys River, now the site of Fort St. Joseph National Historic Site Canada
In the United States Fort St. Joseph (Port Huron), on north end of the St. Clair River in what is now Port Huron, Michigan Fort St. Joseph (Niles, Michigan), on the St. Joseph River near what is now Niles, Michigan
Other Fort-Liberté, previously known as Fort St. Joseph, in Haiti Fort St. Joseph, Bakel, Senegal