R40

R40, R-40, or similar, may refer to:

Roads

 * R40 road (Belgium)
 * R40 road (Ghana)
 * R40 (South Africa)

Other uses

 * R-40 (missile), a Soviet air-to-air missile
 * R40 (New York City Subway car)
 * Chloromethane, a refrigerant
 * R40: Limited evidence of a carcinogenic effect, a risk phrase
 * R40 Live Tour, a 2015 tour by Canadian rock band Rush
 * R40 series of preferred numbers
 * Renault R40, a French tank
 * Rover 75, an executive car
 * Samsung Sens R40, a laptop
 * Toyota TownAce (R40), a Japanese van
 * R40, a Ferris wheel designed by Ronald Bussink