Kaset Wisai (Thai: เกษตรวิสัย, pronounced [kā.sèːt wí(ʔ).sǎj]; Northeastern Thai: เกษตรวิสัย, pronounced [kā.sèːt wì(ʔ).sǎj]) is a district (amphoe) in southwestern Roi Et province, Thailand.

Originally named Nong Waeng, it was renamed Kaset Wisai in 1939.

[1] The district is divided into 13 sub-districts (tambons), which are further subdivided into 175 villages (mubans).

There are two townships (thesaban tambons): Kaset Wisai and Ku Ka Sing.

This Roi Et Province location article is a stub.