Nong Thum (Thai: หนองทุ่ม) is a tambon (subdistrict) of Seka District, in Bueng Kan Province, Thailand.

[1] The subdistrict was created effective June 8, 1987 by splitting off 8 administrative villages from Sang.

[2] The tambon is subdivided into 13 administrative villages (muban).

The whole area of the subdistrict is covered by the subdistrict administrative organization (SAO) Nong Thum (องค์การบริหารส่วนตำบลหนองทุ่ม).

This Bueng Kan province location article is a stub.