Chumphu Phon (Thai: ชุมภูพร) is a sub-district (tambon) in Si Wilai District, in Bueng Kan Province, northeastern Thailand.

As of 2010, it had a population of 7,475 people and jurisdiction over 12 villages.

[1] It lies along Thailand Route 222, south of Si Wilai and north of Phon Charoen.

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