Adam Cockburn, Lord Ormiston

Adam Cockburn, Laird of Ormiston, Lord Ormiston (1656 – 16 April 1735), was a Scottish administrator, politician and judge. He served as Commissioner for Haddington Constabulary in the parliaments of 1681-2 and 1689, and in the conventions of 1678 and 1689. He was appointed Lord Justice Clerk on 28 November 1692.

Cockburn served as a member of the Privy Council, Treasurer Depute from 1699 until the accession of Anne, Lord Justice Clerk for a second term (1705–10), and a Lord of Session from 1705.

Adam was retoured heir to his brother John in the family's ancient estate of Ormiston, East Lothian, on 28 December 1671. Sasine of the estates followed on 12 June 1672 on a Precept from Chancery.

He was Commissioner for Haddingtonshire at the Conventions of Estates in the years 1678, 1681, and 1689, and in Parliament of Scotland for the year 1690. He was nominated one of the Commissioners to treat on the Union of Parliaments, on 19 April 1689.