William McEwan (disambiguation)

William McEwan or William MacEwan may refer to:


 * Sir William McEwan (1827–1913), Scottish brewer and politician
 * William Barker McEwan (1870–1933), New Zealand librarian
 * Bill McEwan, Canadian businessman
 * Bill McEwan (rugby union), Scottish rugby player
 * Willie McEwan (golfer) (1872–1931), Scottish golfer