Phetchabun (Thai: เพชรบูรณ์) is ane o the northren provinces (changwat) o Thailand. Neighboring provinces are (frae north clockwise) Loei, Khon Kaen, Chaiyaphum, Lopburi, Nakhon Sawan, Phichit an Phitsanulok.
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Phetchabun is locatit in the lawer northren region o Thailand, in the aurie atween the northren an the central region.
The province lies in the broad fertile river valley o the Pa Sak River, wi muntains o the Phetchabun muntain range tae the east an wast. It is surroondit bi places o interest, mony well-kent naitional pairks, bonnie waterfalls an great lakes.
The wird Phetcha oreeginates frae the Sanskrit wird vajra meanin "diamond" (or weapon o Indra), an the wird bun frae Sanskrit purna meanin "full", "perfect" or "whole". Hence the name o the province literally means "Perfect Diamond".
Initially, the province wis cried "Phe-cha-buth" as "Phuenchapura", which means the ceety that is plenty o crops.  The reason for being given such name is acause the province is vera fertile an full o natural resources. acause o the fertility o the land, Phetchabun haes aaways been agriculturally productive aurie.
In the Thesaphiban admeenistrative reforms at the beginnin o the 20t century the province thegither wi the province o Lom Sak tae the north formed the monthon Phetchabun. As it wis the smawest monthon, it wis an aa the first monthon tae be dissolved in 1915, efter being temporarily admeenistrated frae Monthon Phitsanulok atween 1903 and 1907. The province Lom Sak wis abolished an includit intae Phetchabun in 1932. Phetchabun province is situatit atween the northren an the central region.
Frae historical evidence, it is believed that Phetchabun wis established bi twa kinricks – namely the Sukhothai Kinrick an the Ayutthaya Period o the great Keeng Narai. Initially the province wis cried "Phe-cha-buth" as "Phuenchapura", which means the ceety that is plenty o crops. The reason for being given its name is acause the province is vera fertile an full o natural resources.
Admeenistrative diveesions 
- Thanarutleasakon, k. (2002). Pra – wat – tai – sart – Thai – ched– sib – hoke – jung -wat [Thai history of 76 provinces]. Bangkok : One World Publishing.
- Khao Ko
- Pibunying, P. (2006). Petchabun [Phetchabun province]. Bangkok: Bangkok Publishing.