Outey I (1672–1696), also known as Udayaraja II or Narai Ramathipadi II, born Ang Yong (), was the Cambodian king reigned from 1695 to 1696.
Outey I was a son of Kaev Hua II. He succeeded the king after his uncle Chey Chettha IV's first abdication. He reigned only ten months, died suddenly. Chey Chettha IV then regained power.