Kampong Chhnang (Khmer: កំពង់ឆ្នាំង [kɑmpɔŋ cʰnaŋ]) is the capital city of Kampong Chhnang Province, in central Cambodia.

It is located just west of the Tonlé Sap River and is a noted port. The small city is connected to Phnom Penh by a national highway route and railway. Phnom Kong Rei is a landmark located north of the city across the Tonle Sap River.

The economy of the area is dominated by rice production. Until recently, many locals lived in floating fishing villages during the high-water monsoon season.The last of these flaoting villages was dismantled at the end of 2022.