Ouyang ( also spelled Oyang, O. Yang, O'Yang, Owyang, Au Yong, Auyong, Ah Yong, Auyang, Au Yeung, Au Yeang, Au Yeong, Au Ieong, Ao Ieong, Eoyang, Oyong, O'Young, Auwjong, Ojong, Owyong, Au Duong, Ou Young, Ow Young) is one of the most common two-character Chinese compound surnames in the world.
Оуян (, распространена в написаниях Ouyang, Owyang, Au Yong, Auyong, Auyang, Au Yeung, Au Ieong, Ao Ieong, Oyong, O'Young, Auwjong, Ojong, Owyong, Au Duong) — одна из широко распространённых китайских фамилий.