Nescopeck Mountain was entered into the Geographic Names Information System on August 2, 1979. Its identifier in the Geographic Names Information System is 1190986. The ridge is also known as Nescopec Mountain. This variant name appears in Israel C. White's 1883 book The geology of the North Branch Susquehanna River Region in the six counties of Wyoming, Lackawanna, Luzerne, Columbia, Montour and Northumberland. Nescopeck Mountain is most likely named for a Native American village called Nescopeck. The word nescopeck itself is a corruption of neskchoppeck, which may mean dirty waters or black waters.