Talesa, Talèse, Talèze, or Ataresa (ied after 1136) was an Aragonese noblewoman and relative of the royal Jiménez dynasty. She was the daughter of Sancho, Count of Aibar, natural brother of Sancho V of Navarre. She married Gaston IV of Béarn and acted as regent of the viscounty of Béarn during his absences on Crusade and after his death for their son.