A47 may refer to:
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Queen's Indian Defense
The Queen's Indian Defense (QID) is a chess opening defined by the moves:
:1. d4 Nf6
:2. c4 e6
:3. Nf3 b6
The opening is a solid defense to the Queen's Pawn Game. 3...b6 increases Black's control over the central light squares e4 and d5 ...
, ''Encyclopaedia of Chess Openings'' code
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Focke-Wulf A.47, a meteorological aircraft developed in Germany in 1931
; roads
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A47 road
The A47 is a major road in England linking Birmingham to Lowestoft, Suffolk. Most of the section between Birmingham and Nuneaton is now classified as the B4114. From Peterborough eastwards, it is a trunk road (sections west of the A1 road ha ...
, a road connecting Birmingham and Lowestoft in England
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A47 motorway (France), a road connecting Givors and Saint-Étienne
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A47 motorway (Spain), a proposed road to connect Las Nieves and Rosal de la Frontera
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