The Guystac Trophy was a Guyanese inter-county cricket tournament, the final of which had first-class status. The tournament was played annually, the final being usually between Demerara and Berbice, two former colonies and now counties of Guyana. The only exception came in 1980/81 when a side from Essequibo qualified for the final instead of Demerara. The matches were played over a maximum of 4 days but rain caused many games over the years to be drawn.