Hackthorn is a village and civil parish in the West Lindsey district of Lincolnshire, England, to the north of Lincoln.

The population of the civil parish (including Cold Hanworth) at the 2011 census was 207.

Its most prominent building is its hall, a large square brick house, built in the late 18th century in a landscaped park of around 100 acres (0.40 km2).

[citation needed] Situated among the trees of the park overlooking the lake is the parish church, dedicated to St Michael and All Angels.

It contains carved woodwork in the reredos screen and gallery, and an 1869 Nicholson Organ, fully restored in 2006.