The Judicatus of Caralis (Italian: Giudicato di Cagliari, Sardinian: Judicadu de Calaris) was one of the four Sardinian Judicati of the Middle Ages, kingdoms of Byzantine origins. The Judicatus of Cagliari covered the entire south and central east portion of the island and was composed of thirteen subdivisions called curatoriae. To its north and west lay Arborea and north and on the east lay Gallura and Logudoro.