The A414 is a major road in England, which connects the towns of Hemel Hempstead in Hertfordshire and Maldon in Essex.

From there, it runs parallel to the M1 until junction 7, heading south of St Albans and east through Hatfield and Hertford.

The road then crosses the A10 and into Essex; it travels through Harlow, Chipping Ongar and Chelmsford, before terminating at Maldon.

The section between the M1 and the Park Street roundabout junction south of St Albans was formerly classified as the M10 motorway.

The A414 route has always connected Hemel Hempstead and Maldon, but over the years it has changed so much that it is almost completely new.