William Hunter Reynolds (1 May 1822 – 1 April 1899) was a 19th-century businessman and Member of Parliament in Dunedin, Otago region, New Zealand. He was a cabinet minister. He is the only person who held membership on the Otago Provincial Council over the entire course of its existence (1853–1876), was Speaker of the council for three years, and was a member of the council's executive eight times.