Mud Mills is a hamlet in the Town of Arcadia, Wayne County, New York, United States.
It is located three miles (5 km) north-northeast of the Village of Newark, at an elevation of 427 feet (130 m).
N.Y. Route 88 passes just north of Mud Mills.
A historic 2+1⁄2-story grist mill (built c. 1804) is located along Ganargua Creek on Mud Mills Road.
It has been reputed that this grist mill is the last in Wayne County with the mechanics still intact.