Mai Kaen (Thai: ไม้แก่น, pronounced [máːj kɛ̀n]) is the southeasternmost district (amphoe) of Pattani province, southern Thailand.

The minor district (king amphoe) Mae Kaen was formed on 15 November 1973 by splitting the two tambons Sai Thong and Mai Kaen from Sai Buri district.

[2] Neighboring districts are (from the south clockwise): Mueang Narathiwat and Bacho of Narathiwat province and Sai Buri of Pattani Province.

The district is divided into four sub-districts (tambons), which are further subdivided into 17 villages (mubans).

This Pattani Province location article is a stub.