| Viscount of Dunbar | |
| Creation Date: | 14 November 1620 |
| Subsidiary Titles: | Lord Constable |
| Status: | Dormant |
| Extinction Date: | 15 August 1718 |
| Motto: | SANS MAUVAIS DÉSIR (Without the wrong desire) |
Viscount of Dunbar was a title in the Peerage of Scotland created on 14 November 1620, along with the title Lord Constable, for Sir Henry Constable. The titles have been dormant since the death of the 4th Viscount in 1718.