R46

R46 or R-46 may refer to:

Roads

 * R46 expressway (Czech Republic), now the D46 motorway
 * R46 (South Africa)

Other uses

 * R-46 (missile), a Soviet intercontinental ballistic missile
 * R46 (New York City Subway car)
 * Escadrille R46, a unit of the French Air Force
 * R46: May cause heritable genetic damage, a risk phrase