The O Du are a small ethnic group, living in a few villages in Vietnam's Nghe An province. The total population is less than 200. There is also a small O Du community in Laos, but because they are not recognized as an official minority there, it is difficult to obtain information about their numbers. They subsist mainly on slash and burn agriculture and raising cattle, augmented by hunting, gathering, and weaving. Although they originally had their own Mon Khmer language, it is no longer in use, with most O Du now speaking Thai.