Nether Heyford is a village and civil parish in West Northamptonshire, England, close to the M1 motorway and the A5 and A45 roads, 6 miles west of Northampton and 70 miles northwest of London. The smaller village of Upper Heyford is about half a mile to the north. Nether Heyford takes its name from 'Hay ford'. Alternatively, 'hedge ford' or enclosure ford'. In 1086, in the Domesday Book, the name is recorded as "Heiforde".