St Peter's Church, Trusthorpe is a parish church in Trusthorpe in Lincolnshire, England, dating back in part to the 13th century. The tower was built in 1606, elements of the chancel arch are 14th century, and the octagonal font is dated as c.1400. The nave was built in 1842 and the chancel in 1941. Much of the church is in red brick with stone dressings and slate roofing. The tower is buttressed and has a parapet, with four stone pinnacles. Apart from the font, the interior fittings are 19th and 20th century.