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 Johnson Model R-14, a proposed U.S semi-auto rifle R-14 Chusovaya, a Soviet ballistic missile , 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