Flemington is a borough in Clinton County, Pennsylvania, United States.

[3] In 1770, Squire John Flemming, who later was a Revolutionary War soldier, purchased about 1650 acres situated between Bald Eagle Creek and the West branch of the Susquehanna River encompassing much of present day Lock Haven and Flemington (named after the family).

The Flemings built a large house on the bank of the river close to the southern abutment of a nearby dam and it could be seen from the highway between Flemington and Lock Haven.

The Flemings were descended from the Earl of Wigton of Scotland, and had their own coat of arms.

Pennsylvania Route 150 passes through the center of Flemington, leading northeast into Lock Haven and southwest 2 miles (3 km) to Mill Hall.