Bueng Sam Phan (Thai: บึงสามพัน, pronounced [bɯ̄ŋ sǎːm pʰān]) is a district (amphoe) in the southern part of Phetchabun province, northern Thailand.

On 15 May 1975 tambon Sap Samo Thot together with tambons Sap Mai Daeng, Nong Chaeng, and Kan Chu were split from Nong Phai District to create the minor district (king amphoe) Bueng Sam Phan.

[2] Neighboring districts are (from the north clockwise) Chon Daen and Nong Phai of Phetchabun Province, Phakdi Chumphon of Chaiyaphum province, Wichian Buri of Phetchabun, and Phaisali and Nong Bua of Nakhon Sawan province.

The district is divided into nine sub-districts (tambons), which are further subdivided into 117 villages (mubans).

Sap Samo Thot is a township (thesaban tambon) and covers parts of tambons Sap Samo Thot and Bueng Sam Phan.