B75 or B-75 may refer to:
Places and highways Bundesstraße 75, a German road Cobb Highway, in New South Wales, Australia, designated B75 Sutton Coldfield, according to the list of postal districts in the United Kingdom
Other Intel Ivy Bridge Chipset Sicilian Defense, Dragon Variation, according to the Encyclopaedia of Chess Openings Thor (rocket) HLA-B75, an HLA-B serotype