Zaav, Zav, Zaab,[1] or Zou (Persian: زاو or زو) is the tenth Shah of the Pishdadian dynasty of Persia according to Shahnameh.[2] He was a descendant of Nowzar[1] and ruled over Iran for about five years.
According to the Shahnameh, his reign brought about an era of justice in Iran during a time of rampant military crimes caused by the war with Afrasiab. Because of widespread famine, Afrasiab wished to conclude the war as soon as possible and an agreement was reached where Turan was given the rights to all the land across the Oxus in exchange for peace. During the rest of his reign, Zav lead Iran during an era of renewed prosperity before dying at the age of 86.[3]