Kilnwick Percy is a hamlet in the East Riding of Yorkshire, England. It is situated approximately 1.5 miles (2.4 km) north east of Pocklington town centre. It lies to the north of the B1246 road.
It forms part of the civil parish of Nunburnholme.
Kilnwick Percy Hall is a Grade II* listed country house built around 1845. It is now a Buddhist meditation and retreat centre.
The extensive grounds of the hall include a lake and a small church in the Norman style dedicated to Saint Helen.