Lam Thamenchai (Thai: ลำทะเมนชัย, pronounced [lām tʰā.mēːn.tɕʰāj]; Northeastern Thai: ลำทะเมนชัย, pronounced [la᷇m tʰā.me᷇ːn.sa᷇j]) is a district (amphoe) of Nakhon Ratchasima province, northeastern Thailand.

The area of Lam Thamenchai was separated from Chum Phuang district and made a minor district (king amphoe) on 15 July 1996.

[3] Neighboring districts are (from the east clockwise): Khu Mueang and Lam Plai Mat of Buriram province; Chum Phuang and Mueang Yang of Nakhon Ratchasima Province.

The township (thesaban tambon) of Nong Bua Wong covers parts of the tambons Kui and Phlai.

This Nakhon Ratchasima Province location article is a stub.