Dansville is a village in the town of North Dansville, with a small northern part in the town of Sparta in the eastern part of Livingston County, New York, United States. As of the census, the village population was 4,719. The village is named after Daniel Faulkner, an early settler. Interstate 390 passes next to the west side of the village.
A spa, which opened in 1854, drew many prominent people for the water cure. Located in the "Castle on the Hill," the spa operated for many years under several owners.
The Delaware, Lackawanna & Western Railroad opened its mainline between Binghamton and Buffalo, high above Dansville, on September 17, 1882. Famed "Dansville Hill" was an impediment to heavy eastbound trains for 81 years, until the mainline was abandoned by the Erie-Lackawanna Railroad between Groveland and Wayland in late 1963. A portion of the right-of-way is now used as an access road to a cellphone tower, with spectacular views looking westward down to Dansville and its surrounding area.
The Dansville Downtown Historic District, Dansville Library, Engleside, Elias H. Geiger House, William Hartman Farmstead, Pioneer Farm, and United States Post Office are listed on the National Register of Historic Places.