R13

R13 or R-XIII may refer to:

Aviation

• Fouga CM.8 R13 Cyclone, a French sailplane
• Lublin R-XIII, a Polish army-cooperation plane
• Tumansky R-13, a Soviet turbojet engine

Roads

• Jalan Gua Kelam, in Malaysia
• R-13 regional road (Montenegro)

Other uses

• Caraga or Region 13, an administrative region in the Philippines
• R-13 or Restricted-13, a movie rating from the Movie and Television Review and Classification Board
• R13 (drug), an antidementia agent
• R-13 (missile), a Soviet missile system
• R13 (Rodalies de Catalunya), a regional rail line in Catalonia, Spain
• Chlorotrifluoromethane, a refrigerant
• Nyaneka language
• R13: Extremely flammable liquefied gas, a risk phrase
• Rebellion R13, a prototype racing car
• ROT13, a simple cipher
• USS R-13 (SS-90), a submarine of the United States Navy
• R 13, a Buffet Crampon clarinet model