Lyons Falls is a village in Lewis County, New York, United States.

It is at the junction of state Routes 12 and 12D, approximately 14 miles (23 km) south of Lowville, the county seat.

The village was at the northern end of the Black River Canal, when it was completed in 1858.

The Forest Presbyterian Church, Gould Mansion Complex, and The Pines are listed on the National Register of Historic Places.

[4] The Wildwood Cemetery and Mary Lyon Fisher Memorial Chapel was added in 2011.

Most of the village is in the town of West Turin, on the west side of the Black River, while a less densely developed part of the village, including Riverside Park, is in the town of Lyonsdale on the east side of the river.