Hackthorn is a village and civil parish in the West Lindsey district of Lincolnshire, England, to the north of Lincoln. It is combined with Cold Hanworth to form the parish council of Hackthorn and Cold Hanworth. The population of the civil parish at the 2011 census was 207. It is situated approximately 6 miles (10 km) north from the city and county town of Lincoln, and 1 mile (1.6 km) east from the A15. According to the 2001 Census it had a population of 180. The village is part of the Owmby Group of parishes.