Selaphum (Thai: เสลภูมิ, pronounced [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.

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] The district is divided into 18 sub-districts (tambons), which are further subdivided into 235 villages (mubans).