Phu Phan (Thai: ภูพาน, pronounced [pʰūː pʰāːn]) is a district (amphoe) of Sakon Nakhon province, northeast Thailand.

[1] The tambon Kok Pla Sio was added from Mueang Sakon Nakhon district in 1996.

[3] Neighboring districts are (from the north clockwise) Kut Bak, Mueang Sakon Nakhon and Tao Ngoi of Sakon Nakhon Province, Na Khu, Huai Phueng, Somdet and Kham Muang of Kalasin province.

The district is divided into four sub-districts (tambons), which are further subdivided into 61 villages (mubans).

There are no municipal (thesaban) areas, and a further four tambon administrative organizations (TAO).