B70 or B-70 may refer to:
B70 (chess opening), a code for the Dragon Variation from the Encyclopaedia of Chess Openings B70 (New York City bus), a public transit line in Brooklyn in New York City B-70 Valkyrie, a planned American supersonic bomber aircraft Bundesstraße 70, a federal highway in Germany CD86, a human protein also called B70 HLA-B70, an HLA-B serotype West Bromwich, UK postcode The pennant number assigned to Turkish battlecruiser TCG Yavuz Sultan Selim Bestune B70, a sedan