Donington on Bain is a village and civil parish in the East Lindsey district of Lincolnshire, England. It is situated approximately 6 miles (10 km) south-west from Louth and 6 miles (10 km) north from Horncastle. The village sits on the east bank of the River Bain, and in the Lincolnshire Wolds, an Area of Outstanding Natural Beauty. The Viking Way runs north to south through the village. Cadwell Park racetrack is approximately 4 miles (6 km) to the east.