R5 may refer to:
Roads or railroads Autopista Radial R-5, a Spanish radial motorway R5 (RER Vaud), an S-Bahn line in the canton of Vaud R5 expressway (Slovakia) R5 road (Zimbabwe), a road connecting Harare with Mutare Radial Road 5 or R-5, an arterial road of Manila, Philippines Line R5, a commuter rail service on the Llobregat–Anoia Line, in Barcelona, Catalonia, Spain R5 Doylestown, a rail line in Philadelphia, USA R5 Paoli-Thorndale, a rail line in Philadelphia, USA
Ships HMS Invincible (R05), a 1980 British Royal Navy light aircraft carrier HMS Urania (R05), a World War II British Royal Navy U-class destroyer (SS-82), a 1918 R-class coastal and harbor defense submarine of the United States Navy
Cars Jaguar R5, a Jaguar Racing car for the 2004 Formula One season Renault 5, a French automobile R5 (rallying) a class within Group R regulations for rallying
Aircraft Kinner R-5, a popular engine for light general and sport aircraft Polikarpov R-5, a reconnaissance biplane widespread in the Soviet Union before World War II Sikorsky R-5, an early USAF designation of Sikorsky S-51 helicopter, changed to H-5 Thomas-Morse R-5, a 1920s American racing aircraft
Buildings Regjeringskvartalet, a building in the Norwegian Government quarter (Norw. Regjeringskvartalet)
Weapons R5 assault rifle, a variant of the South African R4 assault rifle compact carbine R-5 Pobeda, a theatre ballistic missile developed by the Soviet Union during the Cold War
Medicine and chemistry R5 virus, a form of HIV tropism ATC code R05 Cough and cold preparations, a subgroup of the Anatomical Therapeutic Chemical Classification System Cough ICD-10 R5: Heating may cause an explosion, a risk phrase in chemistry receptor 5, the fifth in line of a series of cellular receptors, generally at the end of an acronym
Other uses R5 (band), an American pop-rock band R5 (bootleg), a copy of a movie made with a telecine machine from an analog source Region 5, the DVD region code for most of Africa, Asia, and the former Soviet Union BBC Radio 5 Live, a British radio station Jordan Aviation, IATA airline designator Malta Air Charter, former IATA airline designator R5 series of preferred numbers Radeon R5, graphics processing units in the Radeon 200 series a type of droid from Star Wars, such as R5-D4 R5 Hastings St, an express bus service in Metro Vancouver, British Columbia, Canada Canon EOS R5, a Canon full-frame mirrorless interchangeable-lens camera Valkyrie (robot), a humanoid robot developed by NASA in 2013, also called R5
See also 5R (disambiguation) MS R Five, original name of the cruise ship MS Nautica