An amphoe (sometimes also amphur, Thai: อำเภอ, [ʔāmpʰɤ̄ː]) is the second level administrative subdivision of Thailand. Usually translated as district, amphoe make up the provinces, and are analogous to a county. The chief district officer is the Nai Amphoe (นายอำเภอ). Amphoe are further subdivided into tambon.
More information on the Wikipedia page .