A23 may refer to.
The Aero A.38 was a Czechoslovakian biplane airliner of the 1920s and 1930s.
Aero Vodochody (commonly referred to as Aero; Vodochody is a location) is a Czech (previous Czechoslovak) aircraft company, active from 1919, notable for producing the L-29 Delfin, L-39 Albatros, L-59 Super Albatros, and the L-159 Alca military light combat jet.
This is a list of aircraft in numerical order of manufacturer beginning with a digit, followed by alphabetical order beginning with numeral '0' through 'Ah'.
List of civil aircraft is a list of articles on civilian aircraft with descriptions, which excludes aircraft operated by military organizations in civil markings, warbirds, warbirds used for racing, replica warbirds and research aircraft.