Catrine and Sorn was one of 10 electoral wards of Cumnock and Doon Valley District Council.
Created in 1974, the ward elected one councillor using the first-past-the-post voting electoral system.
The ward produced strong results for Labour with the party holding the seat at two of the three elections.
The Catrine and Sorn ward was created in 1974 by the Formation Electoral Arrangements from the previous Sorn electoral division of Ayr County Council.
The ward centered around the villages of Catrine and Sorn and took in the northeastern part of Cumnock and Doon Valley between its borders with Kilmarnock and Loudoun District Council and Clydesdale District Council.