New York State Route 11B (NY 11B) is a state highway in northern New York in the United States. It provides a parallel, more southerly east–west route (but signed north-south) to U.S. Route 11 between US 11 in Potsdam and US 11, NY 30, and NY 37 in Malone. NY 11B serves both the Potsdam Municipal Airport and the riverside hamlet of Nicholville, where NY 11B meets NY 458. Aside from the two villages at each end of the route and the hamlet of Nicholville near the midpoint, NY 11B passes through rural, lightly populated areas, as does its parent to the north. In Malone, NY 11B overlaps NY 30 for one block in order to reconnect to US 11.