The West Trenton Line is a proposed NJ Transit (NJT) commuter rail service that would be operated mostly on the CSX Transportation Trenton Subdivision, connecting West Trenton Station in Ewing Township, New Jersey with Newark Penn Station in Newark, New Jersey. The route would connect with the Raritan Valley Line at Bridgewater and the SEPTA West Trenton Line at West Trenton. As of 2007, NJT's estimate of the cost of creating a passenger line to West Trenton was $219 million. The project is still on the books, but no funding for the proposal has been secured to this date.

West Trenton station is the northern terminus of SEPTA's West Trenton Line. It is located at Grand & Railroad Avenues in the West Trenton section of Ewing Township, New Jersey, however this address only applies to the southbound station house on the west side of the tracks. The northbound station house is on the east side of the tracks and is located on Sullivan Way, which changes into Grand Avenue once it crosses under the tracks. SEPTA's official website gives the address as being in Trenton. The station has off-street parking, and is located in Fare Zone NJ. In FY 2013, West Trenton station had a weekday average of 292 boardings and 361 alightings.