Sir John Maclean

Sir John Maclean may refer to:


 * Sir John Maclean, 4th Baronet (1670–1716), Scottish noble who was the 20th Clan Chief of Clan Maclean from 1674 to 1716
 * Sir John Maclean, 1st Baronet (1604–1666), Scottish noble who moved to Sweden and took the name John Hans Makeléer and married Anna Gubbertz
 * Sir John MacLean (historian) (1811–1895), British civil servant, genealogist and author