Ku Kaeo (Thai: กู่แก้ว, pronounced [kùː kɛ̂ːw]) is a district (amphoe) in central Udon Thani province, northeastern Thailand.

Neighboring districts are (from the north clockwise): Nong Han, Chai Wan, Si That, Kumphawapi, and Prachaksinlapakhom.

[3] The district is divided into four sub-districts (tambons), which are further subdivided into 37 villages (mubans).

There are no municipal (thesaban) areas, and four tambon administrative organizations (TAO).

This Udon Thani Province location article is a stub.