The Dong Son culture is a prehistoric Bronze Age age in Vietnam centered at the Red River Valley of northern Vietnam.

At this time the first Vietnamese kingdoms of Văn Lang and Âu Lạc appear.

Its influence flourishes to other parts of Southeast Asia, including the Indo-Malayan Archipelago from about 1000 BCE to 1 BCE.The Dong Son people, also known as Lac or Lac Viet, are skilled at cultivating rice, keeping buffaloes and pigs, fishing and sailing with long dugout canoes.

They also are skilled bronze casters, as can be seen in the famous Dong Son drums, which have been found widely in Southeast Asia and the Southern China.The Dong Son culture is linked to the Tibeto-Burman culture, the Dai culture in Yunnan and Laos, the Mon–Khmer cultures and the culture associated with the Plain of Jars in Laos.

Similar artifacts have been found in Cambodia along the Mekong River dating back to the 4th millennium BC.

Dong Son influence is seen throughout Southeast Asia, from the moko drum of Alor, Indonesia (suspected of originating with Dong Son bronze drums) to the design of the keris knife.To the south of the Dong Son culture is the proto-Cham Sa Huỳynh culture.