William Buckner may refer to
William Quinn Buckner (born 1954), American former basketball player and coach Bill Buckner (1949–2019), American Major League Baseball first baseman Billy Buckner (born 1983), American Major League Baseball pitcher William Buckner (Irish MP) (?–1700), Irish politician, for Dungarvan William Buckner (priest) (1605–1657), English Anglican priest
See also Buckner (disambiguation)#People