John Symonds Udal (10 November 1848 in West Bromwich, Staffordshire, England – 13 March 1925 in London) was an English-born cricketer, antiquarian, author, lawyer and judge. He represented the Fiji national cricket team. He also held government office in Fiji for many years, serving as Attorney-General from 1889 to 1899. He later served as Chief Justice of the Leeward Islands (1900 - 1911).