A43

A43 or A-43 may refer to:

Military

 * Curtiss A-43 Blackhawk, an American prototype aircraft
 * Douglas A-43 Jetmaster, an American prototype aircraft
 * Black Prince (tank), an experimental British heavy tank


 * Advanced Landing Ground A-43, an airfield in France

Roads

 * A43 road, a primary road in the English Midlands
 * A43 road (Northern Ireland), a primary road in Northern Ireland
 * A43 autoroute, a French highway
 * A 43, Bundesautobahn 43 in Germany

Other uses

 * HLA-A43, an HLA-A serotype
 * Benoni Defense, a chess opening (by Encyclopaedia of Chess Openings code)