Wat Ratcha Khruet Worawihan, also called Wat Ratchakreuh or Wat Rajkrueh is an ancient temple dating from the late Ayutthaya period. It was built by an officer of a troop of Mon people and is sometimes called in Thai, Wat Bang Yi Ruea Mon. The temple is located on Thoet Thai, in Bang Yi Ruea, Thonburi, Bangkok, Thailand.