A34 or A-34 may refer to:
Roads A34 autoroute (France), connecting Sedan and Reims A34 highway (Sri Lanka), connecting Mankulam and Mullaitivu A34 road (England), connecting Winchester, Hampshire to Salford A34 road (Isle of Man), connecting Ballasalla and the A3
A34 (Sydney), Australia
Other uses Aero A.34, a Czech touring plane of the 1930s Brewster A-34 Bermuda, USAAF designation for lend-lease SB2As dive bombers built for the British HLA-A34, a human serotype Painter of Berlin A 34, a vase painter during the pioneering period of Attic black-figure vase painting A-34 Comet (tank), a British tank used in World War II English Opening in chess (Encyclopaedia of Chess Openings code A34, among others) Samsung Galaxy A34 5G, an Android smartphone by Samsung Electronics