William Ruthven may refer to:
- William Ruthven, 1st Lord Ruthven (died 1513)
- William Ruthven, 2nd Lord Ruthven (died 1552)
- William Ruthven, 1st Earl of Gowrie (c.1541–1584), known as the Lord Ruthven 1566–1581
- William Ruthven (VC), (1893–1970), Australian soldier and politician
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