Chhau may refer to: Chhau dance in India Chhau Mask of Purulia district Chhau, Jhunjhunu, an Indian village Chhaupadi, a menstrual taboo in western hills of Nepal. Chháu, a Minnan-dialect romanization of the Chinese surname Cao chháu-á-ké, the Minnan language name for caozai guo