West Branch Neshaminy Creek is one of two branches of the Neshaminy Creek, the other being the North Branch, part of the Delaware River watershed. It is located in Bucks and Montgomery Counties in Pennsylvania.
West Bank Neshaminy Creek rises from an unnamed pond southeast of County Line Road between Church Street and East Township Line Road at an elevation of , flowing south for about where it meets an unnamed tributary from the left bank, then turns to the southeast for about where it meets a tributary from the right. Then it meanders to the east, then northeast, then southeast, picking up three more tributaries from the right and one from the left (Arrowhead Spring Creek) before meeting up with the North Branch to form the Neshaminy at an elevation of , total length of the branch is , resulting in an average slope of . The West Branch drains .