William Erskine
William Erskine is the name of the following people:
- William Erskine (Bishop) († after 1587), Scottish clergyman, Archbishop of Glasgow
- William Erskine (courtier) († 1685), Scottish courtier, cupbearer of King Charles II.
- William Erskine, 8th Earl of Buchan (after 1655–1695), Scottish nobleman
- William Erskine, 5th Baron Erskine (1841–1913), British nobleman