Na Suang (Thai: นาส่วง) is a tambon (subdistrict) of Det Udom District, in Ubon Ratchathani Province, Thailand.

[7] The tambon is located in the northernmost region of the Det Udom district, which is the low river plain of two tributaries of the Mun River—Khaosan Creek and Khaen Creek—and covered 55.40 kilometers of squares.

[3] The tambon is divided into 10 administrative villages (mubans; หมู่บ้าน), two of which, Na Suang (นาส่วง) and Sao Lao (เสาเล้า) villages, each was further divided into two community groups (Mu; หมู่).

[2] The area is shared by 2 local governments; the township area was administrated by the Na Suang Subdistrict Municipality (เทศบาลตำบลนาส่วง) while the remaining was covered by the Subdistrict Administrative Organization of Na Suang (องค์การบริหารส่วนตำบลนาส่วง; Na Suang SAO).

[2][3] The following is a list of the subdistrict's mubans, which roughly correspond to the villages, as of the 2021 census.