Barison I or Barisone I was the giudicato or "judge" of Arborea from around 1038 until about 1060 and then of Logudoro until his death sometime around 1073. He is the earliest ruler of Logudoro of whom anything is known with certainty. Barisone's policies included opposition to the Republic of Pisa and support of monastic immigration from mainland Italy. His wife was Preziosa de Orrubu.