A70 or A-70 may refer to:

A70 road (Great Britain), a major road in the UK Autovía A-70, a Spanish motorway Benoni Defense, in the Encyclopaedia of Chess Openings Bundesautobahn 70, a German motorway also called A 70 Quebec Autoroute 70, a Canadian highway in the Saguenay region of central Quebec Route A70 (WMATA), a bus route operated by the Washington Metropolitan Area Transit Authority Samsung Galaxy A70, smartphone released in 2019 The third generation of the Toyota Supra

See also List of highways numbered 70