Firthcliffe is a hamlet (and census-designated place) in Orange County, New York United States.

Firthcliffe is named after the now defunct Firth Carpet Company, located on Mill Street, that built many of the homes on Firth street in the Firthcliffe area of the Town of Cornwall.

As of the census[4] of 2000, there were 4,970 people, 1,965 households, and 1,349 families residing in the CDP.

There were 2,065 housing units at an average density of 685.1 per square mile (264.5/km2).

27.7% of all households were made up of individuals, and 13.7% had someone living alone who was 65 years of age or older.