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)