Shamokin Dam is a borough in Snyder County, Pennsylvania, United States. The population was 1,647 at the 2020 census. "Shamokin", or "Shahëmokink" in the Delaware language, and Schahamokink in another Algonquian language, means "place of eels." The borough name is also derived from a 10-foot-tall dam that was built across the Susquehanna River in the 19th century. The dam supported steamboat ferries run by Ira T. Clement, which transported goods and people between Shamokin Dam and the city of Sunbury on the Northumberland County side of the river.