N20

N20 may refer to:

Roads

 * Route nationale 20, in France
 * N20 road (Ireland)
 * Navajo Route 20, in Arizona, United States

Other uses

 * N20 (Long Island bus)
 * BMW N20, an automobile engine
 * EFW N-20, a Swiss jet fighter aircraft
 * London Buses route N20
 * Nitrogen-20, an isotope of nitrogen
 * Toyota Hilux (N20), a Japanese pickup truck
 * N20, a postcode district in the N postcode area