Pennsylvania Route 329 (PA 329) is a Pennsylvania state highway which runs for through Lehigh and Northampton counties in the Lehigh Valley region of the state. It runs from PA 873 in the North Whitehall Township village of Neffs east to PA 248 and PA 987 in Bath. The route is a two-lane undivided road that runs through a mix of rural and developed areas to the north of the cities of Allentown and Bethlehem, serving the communities of Balliettsville, Egypt, Cementon, and Northampton. PA 329 intersects PA 145 near Egypt and runs concurrent with PA 987 between East Allen Township and the eastern terminus in Bath.