William MacMillan or McMillan may refer to:
- William Duncan MacMillan (1871–1948), American mathematician and astronomer
- William J. P. MacMillan (1881–1957), Canadian physician and Prince Edward Island politician
- William McMillan (congressman) (1764–1804), delegate to the United States Congress from the Territory Northwest of the River Ohio
- William McMillan (college president) (1777–1832), president of Jefferson College, 1817–1822
- William McMillan (sculptor) (1887–1977), British sculptor and medal-designer
- William McMillan (Australian politician) (1850–1926), Irish-Australian politician, first Member for Wentworth
- William McMillan (sport shooter) (1929–2000), American sports shooter and Olympic Champion
- William Hector McMillan (1892–1974), Liberal party member of the Canadian House of Commons
- William McMillan (footballer, born 1872) (1872–1929), Scottish wing half who played for Southampton and Burnley in the late 1890s
- William McMillan (footballer, born 1876) (1876–1958), Scottish full back/centre half who played for Lincoln City in the 1890s/1900s
- William Macmillan (minister) (1927–2002), Moderator of the General Assembly of the Church of Scotland
- William Miller Macmillan (1885–1974), Scottish historian
- William L. McMillan (1936–1984), American physicist
- Will McMillan (1944–2015), American actor
- William Hutchison McMillan (1886–1947), Scottish mining engineer
- William Northrup McMillan (1872–1925), American-born Kenyan settler, adventurer, and philanthropist
See also
Topics referred to by the same termThis disambiguation page lists articles about people with the same name. If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: