Tathwell is a village in the East Lindsey district of Lincolnshire, England. Tathwell is situated approximately 3 miles south from the market town of Louth. The hamlet of Dovendale, alongside the A153 road to the west of the village is in the parish. The hamlet of Haugham lies about 1 mile south-east of Tathwell. Cadwell Park motor racing circuit is about 2 miles south of Tathwell.