William Weir may refer to:
- William Alexander Weir (1858–1929), Quebec lawyer and politician
- William Weir (architect) (1865–1950), Scottish restorer of historic buildings
- William Weir, 1st Viscount Weir (1877–1959), Scottish industrialist
- William Weir, 3rd Viscount Weir (born 1933), British peer and businessman
- William Gilbert Weir (1896–1971), Canadian politician
- Bill Weir (born 1967), co-anchor of Good Morning America Weekend Edition
- Bill Weir (footballer), Australian rules footballer
- William Weir (aviator) (1891–?), World War I flying ace
- William Weir (trade unionist) (1868–?), British coal miner and politician
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: