R40

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

• R40 road (South Africa)
• R40/A (New York City Subway car), a subway car model
• R40: Limited evidence of a carcinogenic effect, a risk phrase in chemistry
• Bisnovat R-40, a long-range Soviet air-to-air missile
• Renault R40, a French Second World War tank
• Chloromethane, a chemical compound once widely used as a refrigerant
• Rover 75, from its production code
• the R40 series of preferred numbers
• R40, one of the Wheels of Excellence range of Ferris wheel designs by Ronald Bussink, acquired by Vekoma in 2008
• a Samsung Sens laptop computer model
• Rush R40, a box set by Canadian progressive rock band Rush to commemorate the fortieth anniversary of their debut album, Rush (released in 1974).
• R40 Live Tour, 2015 tour by Rush