A7
A7, A.7, A 7, A07 or A-7 may refer to:

Arts and entertainment
Music
A7, the A dominant seventh chord used in many rock songs, see dominant seventh chord
A (musical note)
A7 (mixtape), by SCH, 2015
Avenged Sevenfold, a hard rock/metal band

Radio stations
Arutz Sheva, an Israeli radio station meaning Channel Seven

Electronics and software
A7, a type of stereoautograph
Altec Lansing A-7, a speaker
Apple A7, a system on a chip used first in the iPhone 5S
ARM Cortex-A7, a processor in the ARM Cortex-A processor family
Samsung Galaxy A7, a smartphone
Sony α7, a family of full-frame mirrorless interchangeable-lens cameras.

Military
Equipment
A-7 (transceiver), a Soviet VHF radio transceiver developed during World War II
Skoda 37 mm A7, a tank gun produced before and during World War II by the Skoda Works

Groups
A7 (Artillery Regiment)
A7, the military staff designation in the continental staff system for air force headquarters staff concerned with military training
A 7, a Swedish artillery regiment

Vehicles
A7, a model of German Aggregate Series Rocket from World War II
A-7 Corsair II, a Ling-Temco-Vought single engine jet attack aircraft
Antonov A-7, a World War II Soviet assault glider
Breda A.7, a 1929 Italian reconnaissance aircraft
Focke-Wulf A 7, a World War I German aircraft
Hall-Scott A-7, an early aircraft engine
HMS A7, an A-class submarine of the Royal Navy
USS Shark (SS-8), a.k.a. USS A-7, a Plunger-class submarine of the United States Navy

Science
ATC code A07 Antidiarrheals, intestinal anti-inflammatory/anti-infective agents, a subgroup of the Anatomical Therapeutic Chemical Classification System
British NVC community A7 (Nymphaea alba community), a British Isles plant community
Noradrenergic cell group A7
Subfamily A7, a Rhodopsin-like receptors subfamily

Sports
A7 (classification), an amputee sport classification
A type of Réti Opening code for Chess (A07)

Transportation
Companies
Air Comet, its IATA airline designator
Autobacs Seven, a Japanese sports car manufacturer

Automobiles
Arrows A7, a British racing car
Audi A7, a German mid-size coupe

Roads and routes
A7 road, in several countries
Route A7 (WMATA), a bus route operated by the Washington Metropolitan Area Transit Authority

Trains
LNER Class A7, a class of British 4-6-2T steam locomotives

Other uses
A7, an ISO 216, international standard paper size, 74×105 mm
A7 (bar), bar in New York City

See also
Alpha 7 (disambiguation) (α7 / Α7)