Langar cum Barnstone is a civil parish in the Rushcliffe district of Nottinghamshire, England. The parish contains 24 listed buildings that are recorded in the National Heritage List for England. Of these, one is listed at Grade I, the highest of the three grades, one is at Grade II*, the middle grade, and the others are at Grade II, the lowest grade. The parish contains the villages of Langar and Barnstone and the surrounding countryside. All the listed buildings are in the villages, and consist of a church, tombs and headstones in the churchyard, the churchyard wall, houses, cottages and associated structures, farmhouses and farm buildings, a public house, a former school, a war memorial and a telephone kiosk.