A19

A19, A-19, etc. may refer to:

• A19, one of the Encyclopaedia of Chess Openings codes for the English Opening
• A19, a 2002 album by the Battlefield Band
• "A19", a song by Maxïmo Park from the Missing Songs album
• A19 light bulb, a common household bulb
• A19 road, a code used to identify a particular road in several countries
• A19 (Xinyi), a shopping mall in Taipei, Taiwan
• 122 mm gun M1931/37 (A-19), a Soviet field gun
• Aero A.19, a 1923 Czech fighter aircraft design
• Arrows A19, a Formula One car
• British NVC community A19 (Ranunculus aquatilis community), a plant community
• HLA-A19, a human serotype
• Saro A.19 Cloud, a 1930 British flying boat
• Subfamily A19, a rhodopsin-like receptors subfamily
• Vultee A-19, a 1939 American attack aircraft
• Apple A19, a mobile processor produced by Apple