Gilbert de Moravia, later known as Saint Gilbert of Dornoch, or Gilbert of Caithness, was the most famous Bishop of Caithness and founder of Dornoch Cathedral. His name may suggest that he came from the semi-Gaelicized family of Flemish origin who were Lords of Duffus, and who during Gilbert's episcopate would create the Earldom of Sutherland under Gilbert's possible cousin, William de Moravia, 1st Earl of Sutherland.