Phetchabun (เพชรบูรณ์) is a city in a province of the same name in Lower Northern Thailand.
346 kilometres from Bangkok, Phetchabun borders on three regions, the North, the Central and the Northeast. The central part of the province is on the Pa Sak river basin with mountain ranges running along both the western and eastern sectors. Because of the fertility of the land, Phetchabun has always been an agriculturally productive area. The very name of the province means the "land of crops and foods".