N25

N25, N-25 or N.25 may refer to:

Roads

 * Route nationale 25, in France
 * N25 road (Ireland)
 * N-25 National Highway, in Pakistan
 * Nebraska Highway 25, in the United States

Other uses

 * N25 (Long Island bus)
 * Blue Heron Airport, in Schoharie County, New York, United States
 * HMS Thetis (N25), a submarine of the Royal Navy
 * London Buses route N25
 * Nitrogen-25, an isotope of nitrogen