R23

R23 or R-23 may refer to:

Military

 * R-23 (missile), a Soviet air-to-air missile
 * HMS Teazer (R23), a destroyer of the Royal Navy
 * Rikhter R-23, a Soviet aircraft autocannon
 * USS R-23 (SS-100), a submarine of the United States Navy

Roads

 * R23 road (Belgium)
 * R-23 regional road (Montenegro)
 * R23 highway (Russia)
 * R23 (South Africa)

Other uses

 * R23: Toxic by inhalation, a risk phrase
 * Fluoroform, a refrigerant
 * Kwambi dialect
 * Renault R23, a Formule One racing car
 * Rubik R-23 Gébics, a Hungarian training glider