The 'Bang Pa Kong' () is a
river in east
Thailand. The river originates at the confluence of the
Nakhon Nayok River and the
Prachinburi River at
Pak Nam Yotaka in
Amphoe Ban Sang,
Prachinburi Province. It empties into the
Gulf of Thailand in the northeastern tip of the
Bay of Bangkok. The watershed of the Bang Pa Kong is about 17,000 km².