Khwao Sinarin (Thai: เขวาสินรินทร์, pronounced [kʰwǎw sìʔ.náʔ.rīn], also locally [kʰwǎw sǐn.nā.rīn]) is a district (amphoe) of Surin province, northeastern Thailand.

The minor district (king amphoe) was established on 15 July 1996 with area split from Mueang Surin district.

[3] Neighboring districts are (from the north clockwise): Chom Phra, Sikhoraphum and Mueang Surin.

The district is divided into five sub-districts (tambons), which are further subdivided into 58 villages (mubans).

This Surin Province location article is a stub.