The Church of St Peter in Marksbury, Somerset, England dates from the 12th century, although most of the current fabric is from the 15th century and is a Grade II* listed building. The nave has two 2-light windows under hood moulds flanking a blocked, moulded round-headed door under a plaque dated 1627. The buttressed, off-centre chancel, which is out of line with the nave, has a three-light east window from 1875, which was also when the chancel arch and chancel roof were replaced. The organ chamber was built in 1893. The altar is a Jacobean oak table by Francis Leyborne Popham who died in 1880. A second altar table, which was previously in the church at Stanton Prior, was placed in the tower. The font is Norman.