The Kar-Kiya dynasty, or Kia dynasty, was a Zaydi Shia dynasty which ruled over Bia pish (eastern Gilan) from the 1370s to 1592. They claimed Sasanian ancestry as well.
The Karkiya dynasty helped shah Ismail I to establish the Safavid Empire and later became a vassal state of the empire. The Safavid shah, Abbas I put an end to the Kia'i dynasty by dispatching an army to Gilan in 1592.