Bua Ngam (Thai: บัวงาม) is a tambon (subdistrict) located in the central region of Buntharik district, in Ubon Ratchathani Province, Thailand.

[1] Neighbouring subdistricts are (clockwise from the south) Huai Kha, Non Kho, Nong Sano, and Phon Ngam.

[2] The area was first settled by several groups of villagers evacuated from Sisaket, Amnat Charoen, Det Udom, and Phibun Mangsahan, but the exact timing is unknown.

[2] The subdistrict of Bua Ngam is divided into 12 administrative villages (mubans; หมู่บ้าน), three of which, Non Bak, Udon Chroen, and Taksin Pattana, were further divided into two community groups (Mu; หมู่).

[1] The area is shared by 2 local governments; the township area on the west bank of the Lam Dom Noi was administrated by the Buntharik Subdistrict Municipality (เทศบาลตำบลบุณฑริก), which also covered some area of the neighboring subdistrict, Phon Ngam, while the remaining, approximately 44 km2, was covered by the Subdistrict Administrative Organization of Bua Ngam (องค์การบริหารส่วนตำบลบัวงาม; Bua Ngam SAO).