The Benjamin Blacksmith Shop is a blacksmithy and museum, in operation since before 1885, located adjacent to the Biddle House on Market Street on Mackinac Island in the U.S. state of Michigan. It is part of Mackinac Island State Park. Mackinac Island is known for its local ordinances that forbid privately operated motor vehicles and encourage widespread use of horses, and this smithy displays and celebrates examples of the craft of horseshoeing.