Charles Erskine, 21st Earl of Mar (de jure 5th Earl of Mar) (19 October 1650 – 23 May 1689) was a Scottish nobleman.
On 2 April 1674 he married Mary Maule, daughter of George Maule, 2nd Earl of Panmure. Their son John Erskine became 22nd Earl of Mar.
| Peerage of Scotland | ||
|---|---|---|
| Preceded by John Erskine |
Earl of Mar 1668–1689 |
Succeeded by John Erskine |