R27

R27 may refer to:

Missiles

 * R-27 (air-to-air missile), a Soviet air-to-air missile
 * R-27 Zyb, a Soviet submarine-launched ballistic missile

Roads

 * R-27 regional road (Montenegro)
 * R27 (South Africa)

Other uses

 * R27 (New York City Subway car)
 * BMW R27, a motorcycle
 * HMA R.27, a rigid airship of the Royal Air Force
 * HMS Croziers (R27), a destroyer of the Royal Navy
 * R27: Very toxic in contact with skin, a risk phrase
 * Renault R27, a Formula One racing car
 * Rubik R-27 Kópé, a Hungarian training glider
 * USS R-27 (SS-104), a submarine of the United States Navy