A0

A0 may refer to :

A-0 Geyser, a geyser in Yellowstone National Park
A0 highway (Zimbabwe), a highway which orbits Zimbabwe
A-0 System, the first compiler ever developed for an electronic computer
101 A0 and 103 A0, two versions of the German Heinkel Tourist moped
A0, an international ISO 216 standard paper size (841 × 1189 mm), which results in an area of 1 m²
A0, the lowest A (musical note) note on a standard piano
A0, a climbing grade
He 177 A-0, a pre-production series of the 1942 German Heinkel He 177 heavy bomber
Hs 126A-0, a variant of the 1937 German Henschel Hs 126 reconnaissance aircraft
Ju 87 A-0, a variant of the 1936 German Junkers Ju 87 dive bomber aircraft
Me 210A-0, a pre-production variant of the 1943 German Messerschmitt Me 210 heavy fighter aircraft
A0,Prerna Classes Batch
A-0, a variant of the German Siebel Si 204 transport and trainer aircraft
A-0, a 1943 Pre-production model of the German Walter HWK 109-509 liquid-fuel bipropellant rocket engine
A00, Irregular chess openings code in the Encyclopaedia of Chess Openings
L'Avion, a French airline

See also