Harrison Hayter (10 April 1825 – 5 May 1898) was a British engineer, participating in many significant railway construction projects in Britain and many harbour and dock constructions worldwide.

Other works included the Amsterdam Ship Canal, the foundation of the Spithead Forts, River Witham middle level, Thames Valley drainages, and sewerage in Brighton.

When he died he was completing a large system of docks at Buenos Aires (a dredged channel 14 miles (23 km) long and a 3.5-mile (5.6 km) river frontage), where James Murray Dobson was the resident engineer.

[3] Harrison was a younger brother of Henry Heylyn Hayter the Australian statistician.

William Thomas Baring Hayter and Frances Jane Hayter who married Falconer Madan (1851–1935), Librarian of the Bodleian Library of the University of Oxford.