Ron Phibun (Thai: อำเภอร่อนพิบูลย์, pronounced [rɔ̂n pʰí(ʔ).būːn]) Ron Phibun or Ronphibool is a district (amphoe) in the southern part of Nakhon Si Thammarat province, southern Thailand. The district is home to the Phud Hong Leper Colony. As of 2020, it provides a home for 133 leprosy patients.