William Alcock Tully (14 March 1830 – 26 April 1905) was a Surveyor General of Queensland, (then a colony, now a state of Australia).

He was a foundation member of the Tasmanian Club; in 1860 he married Louisa (died 26 February 1866), granddaughter of Simeon Lord, at Hobart.

[2] In October 1863 (with a glowing reference from James Erskine Calder, Surveyor General of Tasmania) Tully arrived in Queensland as a commissioner of Crown lands in the Kennedy and Warrego pastoral districts during which he surveyed the site of the town of Charleville, Queensland (which he named for Charleville, County Cork where he had spent his youth).

Soon afterward he clashed with Sir Augustus Charles Gregory, the Surveyor General of Queensland.

[2] Tully had assisted to draft the Lands Alienation Act (1868) and the Consolidating Crown Lands Alienation Act (1876); as Surveyor General, he supervised an expansion of activities, endeavored to improve standards and enhanced reproduction of Survey Office maps.