New Haw /ˈnjuːhɔː/ is a residential and part-nature reserve village in Surrey, England situated 20 miles (32 km) southwest by west of London which has a minor railway station on the South Western Main Line shared with Byfleet.The Animal Health and Veterinary Laboratories Agency, an executive agency of DEFRA, has its central laboratories in a semi-rural part of New Haw. The laboratory is notable as being one of the principal test centres for the H5N1 virus.