Donald Bain

Donald Bain may refer to:

• Donald III of Scotland (Template:C. 1033–1099), king of Scotland
• Donald Bain (writer) (1935–2017), United States author and ghostwriter
• Donald Bain, first husband of the Scottish Nationalist politician Margaret Ewing
• Dan Bain (Donald Henderson Bain, 1874–1962), Canadian athlete and merchant