Baron Seaton, of Seaton in the County of Devon, was a title in the Peerage of the United Kingdom. It was created on 14 December 1839 for the soldier and colonial administrator Sir John Colborne. He fought at the Battle of Waterloo and was Lieutenant Governor of Upper Canada from 1828 to 1836, acting Governor General of British North America from 1837 to 1838 and Commander-in-Chief of North America from 1838 to 1839. He later served as Commander-in-Chief of Ireland between 1855 and 1860 and was promoted to Field Marshal in 1860. Lord Seaton was succeeded by his eldest son, the second Baron. He was Military Secretary to his father when Commander-in-Chief of the Forces in Ireland.