| Official Name: | Pho Si Suwan |
| Native Name: | โพธิ์ศรีสุวรรณ |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Sisaket |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Dot |
| Subdivision Type3: | Tambon |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 23519 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 33120 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 3321 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 15.2317°N 104.0767°W |
Pho Si Suwan (Thai: โพธิ์ศรีสุวรรณ, in Thai pronounced as /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.[1]
On 15 May 2007, all 81 minor districts were upgraded to full districts.[2] On 24 August the upgrade became official.[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). There are no municipal (thesaban) areas. There are five tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | |
|---|---|---|---|---|---|
| 1. | Dot | โดด | 25 | 7,952 | |
| 2. | Siao | เสียว | 17 | 4,455 | |
| 3. | Nong Ma | หนองม้า | 12 | 3,519 | |
| 4. | Phue Yai | ผือใหญ่ | 14 | 4,568 | |
| 5. | I Se | อีเซ | 12 | 3,025 |