The nave of the church probably dates from the 14thc. and the chancel dates from the 1860s. The only Romanesque feature is a very simple font.

Edward of Salisbury held Etchilhampton in 1086. William Malwain held land in Wiltshire, possibly at Etchilhampton, in 1176, and had clearly acquired the manor by 1195. A church was built at Etchilhampton in the later 14thc. It was annexed to the church of All Cannings as a chapel, apparently from its foundation.

Pevsner compares the scallops on the underside to other Wiltshire fonts at Everleigh, Fifield Bavant, Longbridge Dervill, Nettleton, Norton, Sutton Benger and Tockenham.