The Khmer Krom are ethnically Khmer people living in or from the Mekong Delta, the south western part of Vietnam known in Khmer as Kampuchea Krom. The Khmer Krom people are considered as the Indigenous people of Southern Vietnam and having the oldest extant recorded history of inhabiting in the region. In Vietnam, they are recognized as one of Vietnam's fifty-three ethnic minorities.

Khmer is an Austroasiatic language spoken by the Khmer people, and the official and national language of Cambodia. Khmer has been influenced considerably by Sanskrit and Pali, especially in the royal and religious registers, through Hinduism and Buddhism. It is also the earliest recorded and earliest written language of the Mon–Khmer family, predating Mon and Vietnamese, due to Old Khmer being the language of the historical empires of Chenla, Angkor and, presumably, their earlier predecessor state, Funan.