R15, R-15, or similar, may refer to:
Automobiles Audi R15 TDI, a Le Mans prototype racing car Renault 15, a French car Yamaha YZF-R15, a motorcycle sold in India and Colombia
Aviation Rubik R-15 Koma, a Hungarian training glider Romano R.15, a French amphibious aircraft Tumansky R-15, a turbojet engine
Roads Jalan Wang Kelian, in Malaysia R-15 regional road (Montenegro)
Vessels , a destroyer of the Royal Navy , an aircraft carrier of the Royal Navy , a submarine of the United States Navy
Other uses R-15 (novel series), a 2009 Japanese novel series by Hiroyuki Fushimi and Takuya Fujima R-15 (concert), a 2001 music concert by Filipina singer Regine Velasquez R-15 (missile), a Soviet submarine-launched ballistic missile R15 (Rodalies de Catalunya), a regional rail line in Catalonia, Spain R15 (New York City Subway car), a subway car built in 1950 Emblem of the East, an Egyptian hieroglyph Oppo R15 Pro, a smartphone The main body-type in the videogame website Roblox R15: Contact with water liberates extremely flammable gases, a risk phrase Ring chromosome 15