Nakhon Ratchasima often shortened to Korat or Khorat , is one of the north-eastern provinces of Thailand. Neighboring provinces are Chaiyaphum, Khon Kaen, Buriram, Sa Kaeo, Prachinburi, Nakhon Nayok, Saraburi, Lopburi.

The capital of the province is The City of Nakhon Ratchasima located in Mueang Nakhon Ratchasima District, also called Korat or Khorat.