Town (pop., 1995 est.: 23,000), East Hertfordshire district, administrative and historic county of Hertfordshire , southeastern England.
Located on the northern periphery of London, Hertford was first recorded as the scene of a general synod led by Theodore of Tarsus in AD 672. The oldest buildings extant are 15th-century timber-framed houses. The town has light engineering industries and many agricultural connections. It is the county's administrative centre.