The A10 is a major road in England. Starting at London Bridge, it runs northward through Tottenham and Enfield, then bypasses Cheshunt, Hoddesdon, Ware and Buntingford. It then runs through Royston and around Cambridge, bypassing Ely and Downham Market before reaching the coast at King's Lynn in Norfolk. Its northern section runs up the valley of the River Great Ouse.

The section from London to Royston follows the route of the Roman Ermine Street

A10 (Switzerland) is an expressway in Switzerland.