Huai Rat (Thai: ห้วยราช, pronounced [hûa̯j râːt]) is a district (amphoe) of Buriram province, northeastern Thailand.

Neighboring districts are (from the east clockwise) Krasang, Mueang Buriram, Ban Dan and Satuek of Buriram Province.

The minor district (king amphoe) Huai Rat was created on 1 April 1990, when the five tambons: Huai Rat, Sam Waeng, Ta Sao, Ban Tako, and Sanuan were split off from Mueang Buriram district.

[1] It was upgraded to a full district on 8 September 1995.

This Buriram Province location article is a stub.