John Erskine, 18th Earl of Mar may refer to: *

John Erskine, Earl of Mar (died 1572) John Erskine, 6th Earl of Mar (died 28 October 1572) was a Scottish aristocrat and politician. He was the custodian of the infant James VI of Scotland and Regent of Scotland. Erskine was a son of John Erskine, 5th Lord Erskine and Lady Margaret ...

, regarded as 18th earl by some sources, and 17th by others. * John Erskine, Earl of Mar (1558–1634), regarded as 19th earl by some sources, and 18th by others.

See also