| Official Name: | Phibun Rak |
| Native Name: | พิบูลย์รักษ์ |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Udon Thani |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Ban Daeng |
| Subdivision Type3: | Subdistrict |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 24185 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 41130 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 4123 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 17.5492°N 103.0575°W |
Phibun Rak (th|พิบูลย์รักษ์, pronounced as /th/) is a district (amphoe) in central Udon Thani province, northeastern Thailand.
Neighboring districts are (from the north clockwise) Nong Han, Chai Wan, Si That, Kumphawapi, and Prachaksinlapakhom.
The minor district (king amphoe) was established on 1 April 1992 by splitting three tambons from Nong Han district.[1] It was upgraded to a full district on 11 October 1997.[2]
The district is divided into three sub-districts (tambons), which are further subdivided into 37 villages (mubans). There are no municipal (thesaban) areas, and three tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | Ban Daeng | บ้านแดง | 15 | 8,967 | ||
| 2. | Na Sai | นาทราย | 11 | 8,077 | ||
| 3. | Don Kloi | ดอนกลอย | 11 | 7,141 |