Pursat is a province of Cambodia. It is in the western part of the country and borders clockwise from the north: Battambang province, the Tonlé Sap, Kampong Chhnang province, Kampong Speu province, Koh Kong province, and East Thailand. It lies between the Tonle Sap and the northern end of the Cardamom Mountains. The Pursat River bisects the province, running from the Cardamoms in the west to the Tonle Sap in the east.