Phunphin (Thai: พุนพิน, pronounced [pʰūn.pʰīn]) is a district (amphoe) in Surat Thani province in the south of Thailand.

[1] Neighboring districts are (from north clockwise): Tha Chang, Bandon, Ban Na Doem, Khian Sa, Khiri Rat Nikhom, and Vibhavadi.

[2] Phunphin district is divided into 16 sub-districts (tambons), which are further subdivided into 98 administrative villages (mubans).

After the completion of 31 km of the railroad to Khiri Ratthanikhom in 1956, construction was halted for budgetary reasons.

Also in Phunphin are the Surat Thani Airport, the Inland Container Depot (ICD), and the Asian highway AH2 (Thai Hwy 41), the main road connecting to other provinces.