Phetchabun province

Phetchabun (Thai: เพชรบูรณ์, pronounced) is one of Thailand's seventy-six provinces (changwat) and lies in lower northern Thailand. Neighbouring provinces are (from north clockwise) Loei, Khon Kaen, Chaiyaphum, Lopburi, Nakhon Sawan, Phichit and Phitsanulok.

The ancient town of Si Thep, in the south of the province, carries one of the oldest Sanskrit inscriptions found in Thailand, and excavation there has dated occupation from the fourth century onwards. In the administrative reforms of the early 20th century the province formed monthon Phetchabun, the smallest of the monthon and the first to be dissolved. Communist insurgents held bases in the mountains between 1968 and 1982. Tourism is now the main industry, and the province is known for sweet tamarind and for the cabbage grown around Phu Thap Boek.