R14

R14, R-14 or R.14 may refer to:

Military

 * Caudron R.14, a French experimental biplane fighter
 * Firestone XR-14, a proposed American helicopter
 * R-14 Chusovaya, a Soviet ballistic missile
 * USS R-14 (SS-91), a submarine of the United States Navy

Roads

 * R14 road (Ghana)
 * R-14 regional road (Montenegro)

Other uses

 * R14 (New York City Subway car)
 * R14 (Rodalies de Catalunya), a regional rail line in Catalonia, Spain
 * Carbon tetrafluoride, a refrigerant
 * Nkumbi language
 * R14: Reacts violently with water, a risk phrase
 * R14 battery, a dry cell
 * Renault 14, a French compact car