A5

"A5" is commonly used to refer to an ISO 216 international standard paper size, measuring (148×210 mm).

A5, A05, A 5, A V or A-5 may refer to:
* A5, a German rocket design in World War II
* A5 band (Apple 5), a Chinese band of 5 boys born in 1980s: Qu Xin, Sheng Chao, Zhang Ji, Gu Chengdong, Jin Lei
* A5 Juggernaut, an armored fighting vehicle in the Star Wars fictional universe
* A5 paper size ISO 216 international standard paper size (148×210 mm)
* A-5 (paintball), a paintball marker made by Tippmann
* A5 regulatory sequence in biochemistry
* A5 road (disambiguation)
* A-5 Vigilante, a carrier-based supersonic bomber designed for the United States Navy
* Annexin A5, a human cellular protein
* ATC code A05, a division of the Anatomical Therapeutic Chemical Classification System
* Audi A5, a 2007 luxury coupé
* Bavarian A V, a 1853 steam locomotive model
* Chery A5, a 2006 Chinese car
* Gibson A-5 mandolin, a Gibson mandolin
* Hall-Scott A-5, an engine powering the 1916 Standard H-2 aircraft
* HMS "A5", an A-class submarine of the Royal Navy
* Prussian A 5, a 1913 German railbus
* USS "Pike" (SS-6), a "Plunger"-class submarine of the United States Navyand Media:
*A5 Television Plc British TV Channel headquarters at Concourse House Liverpooland also :
* In town and country planning in the UK, A5 is the code for permission to use specific land or premises for takeaways
* A5, the designation for air force headquarters staff concerned with plans or strategy
** In the United Kingdom, the UK Joint Force Air Component Headquarters A5 - Air Strategy and GAT branch
* %A5 is the Url Encoded version of the Yen Symbol (¥)
* Airlinair IATA code
* Mitsubishi A5M, a 1930s Japanese fighter plane
* A5 grade (climbing)
* A5, an aid climbing gear manufacturer created by John Middendorf (absorbed by The North Face in 1997)
* A5/1, A5/2 and A5/3, ciphers used in cellular phones
* A 5, a Swedish regiment designation, according to the list of Swedish artillery regiments
* A05, Réti Opening Encyclopaedia of Chess Openings code
* Curtiss Falcon or A-5 Falcon, an attack aircraft manufactured by the Curtiss Aircraft Company
* "A-5 Fantan", an export version of Nanchang Q-5, a Chinese-built jet fighter bomber
* Bhutan aircraft registration code