St Ambrose's Church is in the village of Grindleton, which is situated about 3 miles (5 km) northeast of Clitheroe, Lancashire, England. It is an active Anglican parish church in the deanery of Whalley, the archdeaconry of Blackburn, and the Diocese of Blackburn.[1][2] Its benefice is united with that of St Peter and St Paul, Bolton by Bowland.[3] The church is recorded in the National Heritage List for England as a designated Grade II listed building.[4]
The west tower and part of the nave date from 1805.[4] In 1897–98 the Lancaster architects Austin and Paley rebuilt the body of the church, other than its south side.[5] That rebuilding also included replacement of the box pews and the pulpit.[6]
The church is constructed in sandstone and has slate roofs. Its plan consists of a three-bay nave, a north aisle, a south porch, a single-bay chancel, and a west tower. The tower is in three stages, with a lunette west window in the middle stage. The top stage contains lunette-shaped bell openings, and the parapet is battlemented with pinnacles at the corners. Each bay contains a two-light window. The south porch is constructed mainly of timber. Between the nave and the chancel is a buttress. The south wall of the chancel contains a three-light window, and the east window has four lights. The west window, and the windows along the north aisle, have two lights each.[4]
Inside the church is a five-bay timber arcade. The chancel contains a double sedilia and a piscina. The stained glass in the east window dates from the late 1800s, and contains depictions of the Four Evangelists.[4] Another window depicts Saint George and Joan of Arc, and beneath it is a memorial to the two world wars.[6] The two-manual organ was built in 1879 by Bevington, and restored and overhauled in 1979 by R. D. Holmes and E. H. Holmes.[7]
The churchyard contains the war graves of three soldiers of World War I, and an airman of World War II.[8]