Saucon Creek is a 17.0 mi tributary of the Lehigh River in Lehigh and Northampton counties, Pennsylvania, in the United States. Saucon Creek starts in Lower Milford Township, flows to the northeast passing through the communities of Limeport, Bingen, and Hellertown, and joins the Lehigh River in Bethlehem. The Meadows Banquet Center in Hellertown and Saucon Park in Bethlehem are located along the Saucon. The Ehrhart's Mill Historic District is located along Saucon Creek.