The Ơ Đu are also commonly referred to as O'Du, O Du, Iduh, Tay Hat, Hat, and Haat.1
Culture
The Ơ Đu subsist mainly on slash and burn agriculture and raising cattle, augmented by hunting, gathering, and weaving.
Language
The Ơ Đu have a language also called O'du, which is a Khmuic language.1 The Khmuic languages are Austro-Asiatic.1 There is some debate as to whether the Khmuic languages are of the Mon-Khmer branch, but the majority opinion is that they are not. Most Ơ Đu presently speak Thai.