| Official Name: | Pho Chai |
| Native Name: | โพธิ์ชัย |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Roi Et |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Kham Pia |
| Subdivision Type3: | Subdistrict |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 56917 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 45230 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 4508 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 16.3236°N 103.7692°W |
Pho Chai (Thai: โพธิ์ชัย, in Thai pronounced as /pʰōː tɕʰāj/; โพธิ์ไซย, in Lao pronounced as /pʰo᷇ː sa᷇j/) is a district (amphoe) in the northern part of Roi Et province, Thailand.
Neighboring districts are (from the east clockwise): Phon Thong, Selaphum, Chiang Khwan of Roi Et Province; Rong Kham, Don Chan, and Kuchinarai of Kalasin province.
The minor district (king amphoe) was created on 1 April 1974, when the four tambons, Chiang Mai, Kham Pia, Sa-at, and Kham Pha-ung, were split off from Phon Thong district.[1] It was upgraded to a full district on 25 March 1979.[2]
The district is divided into nine sub-districts (tambons), which are further subdivided into 112 villages (mubans). There are two townships (thesaban tambons). Chai Wari covers parts of tambon Kham Pia, and Chiang Mai covers tambon Chiang Mai. There are a further eight tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | Kham Pia | ขามเปี้ย | 20 | 10,489 | ||
| 2. | Chiang Mai | เชียงใหม่ | 12 | 8,140 | ||
| 3. | Bua Kham | บัวคำ | 11 | 5,268 | ||
| 4. | Akkha Kham | อัคคะคำ | 14 | 7,817 | ||
| 5. | Sa-at | สะอาด | 14 | 4,675 | ||
| 6. | Kham Pha-ung | คำพอุง | 13 | 8,950 | ||
| 7. | Nong Ta Kai | หนองตาไก้ | 10 | 3,592 | ||
| 8. | Don Ong | ดอนโอง | 10 | 4,237 | ||
| 9. | Pho Si | โพธิ์ศรี | 8 | 3,749 |