Tathwell is a village in the East Lindsey district of Lincolnshire, England.

Tathwell is situated approximately 3 miles (5 km) 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.

Cadwell Park motor racing circuit is about 2 miles (3.2 km) south of Tathwell.

Tathwell's war memorial cross is sited on a corner of the village main crossroads.