Rigsby is a village in the East Lindsey district of Lincolnshire, 11 miles E of Horncastle and 10 miles SE of Louth. St James's is a small marshland church with W porch, nave, and round apse that was completely rebuilt in 1863 by James Fowler, replacing a thatched building. The reused arch into the vestry is Romanesque.

The overlordship of Rigsby was divided between the Archbishop of York and Odo, Bishop of Bayeux in 1086. Herbert held 6 bovates there from the archbishop that had been held by Healfdene in 1066, and this manor also included a church and a priest. Losoard held 10 bovates from Odo that had been held by Thorulf and Odbert in 1066.

Herbert was apparently Herbert of Rigsby, and the manor remained in that family until at least the 14thc. In 1242 Thomas of Rigsby held one knight's fee in Rigsby (Foster(1924)).

The vestry doorway is a reset 12thc work, possibly the original chancel arch,