Route 155 was a short state highway in the community of Palmyra, New Jersey in Burlington County.

New Jersey Route 155 began at the ferry docks in Palmyra, just to the north of the Tacony–Palmyra Bridge.

The route headed eastward along Cinnaminson Avenue, intersecting with several local roads as it progressed from the harbor and into downtown Palmyra.

The highway continued eastward to the southeast, following Cinnaminson Avenue until leaving downtown Palmyra.

The route designation remained intact for several years until the 1953 New Jersey state highway renumbering, when numerous highways around the state were given new designations.