Pho Si Suwan (Thai: โพธิ์ศรีสุวรรณ, pronounced [pʰōː sǐː sù.wān]) is a district (amphoe) in the northwestern part of Sisaket province, northeastern Thailand.

The minor district (king amphoe) was established on 30 April 1994, when it was split off from Uthumphon Phisai district.

[3] Neighboring districts are (from the north clockwise) Bueng Bun, Uthumphon Phisai, and Mueang Chan of Sisaket Province, and Rattanaburi of Surin province.

The district is divided into five sub-districts (tambons), which are further subdivided into 80 villages (mubans).

This Sisaket Province location article is a stub.