Longbridge Deverill is a village on the river Wylye in SW Wiltshire, 2.5 miles S of Warminster. The church lies to the N of the village and has Saxon origins. The building originally consisted of a chancel and nave; it was dedicated by Archbishop Thomas Becket after 1162, by which time it must have been substantially complete. The aisles, W tower and S porch were added in the 14thc and 16thc. In 1852 the chancel, Bath chapel and vestry were extended eastwards.

Although the present building predominantly dates from the 14th and 15thc, the N nave arcade dates from the first half of the 12thc. The font also dates from the same period.

Longbridge Deverill belonged to Glastonbury Abbey from the 10thc. The Domesday Survey does not mention the vill. After the Reformation the ownership passed to the Thynne family, and the tomb of Sir John Thynne (d.1580) is still in the church.

Before being restored and altered in 1847-1860 and 1852, the church was depicted in an 1804 watercolour by John Buckler (Devizes, Wiltshire Museum).