A22 or A-22 is a three-character acronym that may refer to:

Vehicles

* A 22 (keelboat), a sailing yacht * A-22 Maryland, an American light bomber of World War II manufactured by Glenn L. Martin Company *

Aero A.22 The Aero A.22 was a Czechoslovakian biplane civil utility aircraft based on the Aero A.12 The Aero A.12 was a Czechoslovakian biplane light bomber and military reconnaissance aircraft manufactured in small numbers shortly after World War I. Alt ...

, a Czech civil utility aircraft built during the 1920s * Aeroprakt A-22, a Ukrainian ultralight aircraft *

Arrows A22 The Arrows A22 was the car with which the Arrows team competed in the Formula One season. It was driven by Jos Verstappen, who was in his second year with the team, and Enrique Bernoldi, a rookie who brought sponsorship from Red Bull, at the exp ...

, a Formula One car *

Fiat A.22 The Fiat A.22 was an Italian water-cooled aircraft engine from the 1920s. It produced 425 kW (570 hp) and powered several absolute world distance records as well as commercial passenger flights. Design and development During the secon ...

, a piston aero-engine used on the 1925 Italian aircraft

Ansaldo A.120 The Ansaldo A.120, sometimes called the FIAT A.120 since FIAT (''Fabbrica Italiana Automobili Torino'' - Italian Automobile Factory of Turin) bought Ansaldo, was a reconnaissance aircraft developed in Italy in the 1920s. Design and development ...

* IVL A.22 Hansa, a 1922 Finnish license copy of the German two-seat, low winged single-engined seaplane Hansa-Brandenburg W.33 * MAN A22, internal code for the NLxx3F low-floor single-deck bus chassis built by MAN

Biomedicine

British NVC community A22 (Littorella uniflora - Lobelia dortmanna community) This article gives an overview of the aquatic communities in the British National Vegetation Classification system. Introduction The aquatic communities of the NVC were described in Volume 4 of ''British Plant Communities'', first published in ...

, a plant community * ICD-10 code for

Anthrax Anthrax is an infection caused by the bacterium ''Bacillus anthracis''. It can occur in four forms: skin, lungs, intestinal, and injection. Symptom onset occurs between one day and more than two months after the infection is contracted. The sk ...

* Chemical compound A22 (S- ,4-dichlorobenzylisothiourea hydrochloride) with antibiotic activity

Others

*A22 Sports Management, company aiming to create a European Super League in association football *

List of A22 roads This is a list of roads designated A22. Entries are sorted in the countries' alphabetical order. * A22 motorway (Austria), a road connecting Vienna and the A23 to Stockerau * A22 road (England), a road connecting London to Eastbourne, East Suss ...

* English Opening, Encyclopaedia of Chess Openings code {{Letter-NumberCombDisambig