William Rankin (disambiguation)
William Rankin is the name of the following people:
- William Rankin (1920–2009), American pilot
- William Rankin (soldier) (1836–1916), American soldier
- William Rankin (boxer) (1898–1967), British-Canadian boxer
- William Rankin (screenwriter) (1900–1966), American screenwriter
See also:
- William John Macquorn Rankine (1820–1872), Scottish physicist
