A47 may refer to:

• Queen's Indian Defense, Encyclopaedia of Chess Openings code
• Focke-Wulf A.47, a meteorological aircraft developed in Germany in 1931

roads

• A47 road, a road connecting Birmingham and Lowestoft in England
• A47 motorway (France), a road connecting Givors and Saint-Étienne
• A47 motorway (Spain), a proposed road to connect Las Nieves and Rosal de la Frontera

• Port of New York (disambiguation)
• Port of Odessa
• Port of Old Montreal
• Port of Oltenita
• Port of Oltenița
• Port of Omaha
• Port of Orsova
• Port of Orșova
• Port of Oskarshamn
• Port of Ovidiu
• Port of Pasni
• Port of Pecem
• Port of Pescara
• Port of Piraeus
• Port of Pittsburgh
• Port of Pittsburgh Commission
• Port of Plaquemines
• Port of Ploče
• Port of Plymouth
• Port of Police
• Port of Ponce Railroad
• Port of Port Arthur
• Port of Portland (disambiguation)
• Port of Portland Police
• Port of Portland Police Department (Oregon)