Surin is one of the north-eastern provinces of Thailand. Neighboring provinces are (from west clockwise) Buriram, Maha Sarakham, Roi Et and Sisaket. To the south it borders Oddar Meancheay of Cambodia.
The word Sur originates from the Sanskrit word Sura meaning God, and the word In from Sanskrit is Indra. Hence the name of the province literally means Lord Indra.
In the north of the province is the valley of the Mun river, a tributary of the Mekong. To the south of the province is the Dongrek mountain chain, which also forms the boundary to Cambodia.
