Caithness, Sutherland and Easter Ross is a constituency of the House of Commons of the Parliament of the United Kingdom and in the Scottish Parliament. The constituency consists of the traditional counties of Caithness and Sutherland and the Easter Ross area of Ross and Cromarty. The constituency is relatively new and was created by combining the area of Easter Ross with that of the now historic constituency of Caithness and Sutherland.

MP and MSP

Liberal Democrat MP John Thurso has represented the constituency in the House of Commons since the general election of 2001.

In the Scottish Parliament the constituency is represented by Liberal Democrat MSP Jamie Stone.

Local government wards

The constituency consists of the following local government wards: Brora, Dornoch Firth, Caithness Central, Caithness North East, Caithness North West, Caithness South East, Invergordon , Golspie and Rogart, Pultneytown, Rosskeen and Saltburn , Seaboard , Sutherland Central, Sutherland North West, Tain East , Tain West , Thurso East, Thurso Central, Thurso West, Tongue and Farr, Wick and Wick West.