Langar cum Barnstone is a civil parish in the Rushcliffe borough, within the county of Nottinghamshire, England. The overall area had a population of 962 at the 2021 census, a drop from 980 of the 2011 census. The parish lies near the county border with Leicestershire. It lies 120 miles north of London, 4 miles south east of Bingham and 12 miles south east from the city of Nottingham.