Woodhull Mountain is a summit in the Catskill Mountains of Ulster County, New York, lying east-southeast of Frost Valley. Rising about 3,054 feet above sea level, or 931 meters, it is part of the high country of the central Catskills. Nearby peaks include Van Wyck Mountain to the east-northeast and Red Hill to the west-southwest. Its appearance on the Peekamoose Mountain USGS topographic quadrangle places it among the recognized upland summits of this mountainous region.