Caithness and Sutherland was a county constituency of the House of Commons of the Parliament of the United Kingdom from 1918 to 1997. It elected one Member of Parliament (MP) by the first past the post system of election.

Dornoch is a town, seaside resort, parish and former royal burgh in the county of Sutherland in the Highlands of Scotland. It lies on the north shore of the Dornoch Firth, near to where it opens into the Moray Firth to the east.