The Milne Baronetcy, of Barnton, Dumfries, was a title in the Baronetage of Nova Scotia. It was created on 19 March 1686 for Robert Milne with remainder to his heirs male whatsoever. Sir Robert Milne purchased Barnton in 1680, but due to financial problems sold it before 1698. On the death of Sir John the baronetcy became either extinct or dormant.