John William Allman Marchant (9 October 1841 – 22 December 1920) was a New Zealand Surveyor-General and first-class cricketer.

John Marchant was born in Belgaum, India, where his father, Dr Allman, was a surgeon with the 4th King’s Own Regiment.

In 1879 he was appointed chief surveyor of Wellington district, in 1884 commissioner of crown lands, and in 1902 Surveyor-General of New Zealand.

[8] Marchant was one of the leading figures in the conversion of the Basin Reserve from swampy land into a cricket ground.

[5] Marchant married Maria Elise Wright in St Peter's Church, Te Aro, Wellington, on 10 June 1868.