The Saigon River is a river located in southern Vietnam that rises near Phum Daung in southeastern Cambodia, flows south and southeast for about 230 km (140 mi) and empties into the Nhà Bè River, which in its turn empties into the South China Sea some 20 km (12 mi) northeast of the Mekong Delta.

The Đồng Nai River is a river in Vietnam that originates in the Central Highlands region of the southern portion of the country. It is approximately 586 km in length, making it the longest river to be entirely located in Vietnam. It gives its name to Đồng Nai Province.