Lam Plai Mat (Thai: ลำปลายมาศ, pronounced [lām plāːj mâːt]) is a district (amphoe) of Buriram province, northeastern Thailand.

Neighboring districts are (from the northeast clockwise) Khu Mueang, Mueang Buriram, Chamni, Nong Hong of Buriram Province, Huai Thalaeng, Chum Phuang, and Lam Thamenchai of Nakhon Ratchasima province.

The district Lam Plai Mat is subdivided into 16 subdistricts (Tambon), which are further subdivided into 216 administrative villages (Muban).

There are 2 subdistrict municipalities (Thesaban Tambon) in the district: There are 15 subdistrict administrative organizations (SAO) in the district: The Lam Plai Mat District's Motto is "Mat river park, Thamen Chai stupa, great shire, tradition fabric, delicious food, Mee Chai center."

This Buriram Province location article is a stub.