R5

R5, or R-5 may refer to:

* R5 assault rifle, a variant of the South African R4 assault rifle compact carbine
* R-5 (missile), a theatre ballistic missile developed by the Soviet Union during the Cold War
* R5 Productions, an independent concert promotion company in Philadelphia
* R5 (SEPTA), a regional rail line in Philadelphia, Pennsylvania
* R5 virus, a macrophage tropic HIV+
* , a risk phrase in chemistry
* Kinner R-5, a popular engine for light general and sport aircraft
* Motorroad R5 (Slovakia)
* Polikarpov R-5, a reconnaissance biplane widespread in the Soviet Union before World War Two
* Sikorsky R-5, a helicopter used by the United States Army Air Forces
* USS R-5 (SS-82), a 1918 R-class coastal and harbor defense submarine of the United States Navy
* BBC Radio Five Live, a British radio station
* Jordan Aviation, from its IATA airline designator
* Malta Air Charter, from its IATA airline designator
* Renault 5, a French automobile
* a series of Renard numbers; see preferred number
* the DVD region code for most of Africa, Former Soviet Union, the Indian subcontinent, Mongolia and North Korea, also:
** R5 (bootleg), a specific format of DVD released in the former Soviet Union, the Indian subcontinent, and much of Africa

R05 may refer to :
* HMS Invincible (R05), a 1980 British Royal Navy light aircraft carrier