The Nether Poppleton Tithe Barn is a tithe barn at Manor Farm in the village of Nether Poppleton in the unitary authority of City of York in the North of England. Research by dendrochronologists has shown that the tithe barn, which was built on the site of an old nunnery, is at least 450 years old.
The area surrounding the barn forms part of a scheduled monument and after nearby St Everilda's Church, the tithe barn is the oldest, largest and most important building in both Poppletons.