Honda Marysville Auto Plant (MAP) is a Honda manufacturing facility located approximately six miles northwest of Marysville, Ohio, and 42 miles northwest of Columbus, Ohio, near the intersection of US 33 and State Route 739. It is one of the most integrated and flexible auto plants in North America. Operations include stamping, plastics injection molding, welding, painting, sub-assembly and assembly. The assembly plant opened in 1982.

Marysville is a city in and the county seat of Union County, Ohio, United States, approximately 27 miles (43 km) northwest of Columbus. The population was 25,571 at the 2020 census. It is part of the Columbus metropolitan area.