A75 or A-75 may refer to:

• A75 motorway (France), a road connecting Clermont-Ferrand and Béziers
• A75 road (Scotland), a road connecting Carlisle and Ayr
• A-75 motorway (Spain), a road connecting the A-52 motorway near Verín with the Portuguese Auto-estrada A24 near Chaves
• A75 Fusion Controller Hub, a chipset used for AMD microprocessors
• Benoni Defense, in the Encyclopaedia of Chess Openings
• Canon PowerShot A75, a digital camera made by Canon
• Toshiba Satellite A75, a laptop made by Toshiba

• A7S, Alexander Michael Tidebrink Stomberg (born 1994), Swedish singer, DJ, and producer