Source Wikipedia
Lahan Sai is a district (amphoe) in the southern part of Buriram Province, northeastern Thailand.
Lahan Sai area was originally part of Nang Rong District. The area was fertile and covered by dense forest, so people from neighboring districts moved to establish new village there. When the community grew bigger, the government created a minor district (king amphoe) on 1 January 1961 to make it more comfortable for the citizen to reach public services. The new district covered tambons Lahan Sai and Pakham. It was upgraded to a full district on 17 July 1963.
Lahan Sai means "plain fertile width hog deer" (Axis porcinus).
Neighboring districts are (from the southwest clockwise) Ta Phraya of Sa Kaeo Province, Non Din Daeng, Pakham, Nang Rong, Chaloem Phra Kiat, Prakhon Chai, and Ban Kruat of Buriram Province. To the southeast it borders the province Oddar Meancheay of Cambodia. The Sankamphaeng Range mountainous area is in the southern section of this district.
The Lahan Sai District's mottos are 'sacred Lung Pu Suk, city of horticulture and farm plants, silkweaving, beautiful Hin-Lum (Rock hole), many river basins and Lanan Sai border town.'
The district is divided into six sub-districts (tambons), which are further subdivided into 95 villages (mubans). Lahan Sai is a sub-district municipality (thesaban tambon) which covers parts of tambons Lahan Sai. Ta Chong, Samrong Mai, and Nong Waeng are sub-district municipalities which each cover the complete same-named sub-district. The non-municipal parts of Lahan Sai and the sub-districts Nong Takhrong and Khok Wan each have one tambon administrative organization (TAO).