| Official Name: | Selaphum |
| Native Name: | เสลภูมิ |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Roi Et |
| Subdivision Type2: | Seat |
| Subdivision Type3: | Subdistrict |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 122100 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 45120 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 4510 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 16.0333°N 103.9339°W |
Selaphum (Thai: เสลภูมิ, in Thai pronounced as /sěː.lā.pʰūːm/) is a district (amphoe) in the eastern part of Roi Et province, northeastern Thailand.
Neighboring districts are (from the south clockwise): Phanom Phrai, At Samat, Thung Khao Luang, Thawat Buri, Chiang Khwan, Pho Chai, Phon Thong, and Nong Phok of Roi Et Province; Kut Chum, Sai Mun and Mueang Yasothon of Yasothon province.
The Selaphum District was originally named 'Ban Khao Din Bueng Don' (บ้านเขาดินบึงโดน), which is believed been the name of a village. It was named after an island in the large swamp Bueng Don.
In 1879 Mueang Selaphum Nikhom (เสลภูมินิคม) was created. In 1912 it was renamed Selaphum, and converted into a district in 1914.
Khwan Mueang (ขวัญเมือง) sub-district is considered the main settlement in the Selaphum District.
The town is considered an old commercial area of the Selaphum district, many of the constructed buildings are commercial in the style of wooden structures, one-story and two-story in height with distinctive styles and specific architectural elements such as doors, balustrades and air vents above the door.[1] Some of these buildings can be dated to the early to mid 20th century.
From the past to the present the town has been a trading community and historically residence of Chinese merchants who were also present at Yasothon.
The district is divided into 18 sub-districts (tambons), which are further subdivided into 235 villages (mubans). Klang is a township (thesaban tambon) which covers tambon Klang and parts of tambons Na Mueang and Khwan Mueang. There are a further 16 tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | Klang | กลาง | 11 | 7,212 | ||
| 2. | Na Ngam | นางาม | 16 | 8,372 | ||
| 3. | Mueang Phrai | เมืองไพร | 14 | 6,498 | ||
| 4. | Na Saeng | นาแซง | 14 | 5,824 | ||
| 5. | Na Mueang | นาเมือง | 20 | 10,332 | ||
| 6. | Wang Luang | วังหลวง | 18 | 6,291 | ||
| 7. | Tha Muang | ท่าม่วง | 11 | 5,039 | ||
| 8. | Khwao | ขวาว | 16 | 9,371 | ||
| 9. | Pho Thong | โพธิ์ทอง | 14 | 7,931 | ||
| 10. | Phu Ngoen | ภูเงิน | 18 | 12,061 | ||
| 11. | Ko Kaeo | เกาะแก้ว | 14 | 7,611 | ||
| 12. | Na Loeng | นาเลิง | 10 | 4,933 | ||
| 13. | Lao Noi | เหล่าน้อย | 10 | 5,741 | ||
| 14. | Si Wilai | ศรีวิลัย | 11 | 4,725 | ||
| 15. | Nong Luang | หนองหลวง | 9 | 3,024 | ||
| 16. | Phon Sawan | พรสวรรค์ | 9 | 4,456 | ||
| 17. | Khwan Mueang | ขวัญเมือง | 11 | 6,582 | ||
| 18. | Bueng Kluea | บึงเกลือ | 9 | 6,097 |