Yōka Wao (和央 ようか, Wao Yōka, born 15 February 1968) is a Japanese performing artist and a former member of the Takarazuka Revue, where she specialized in playing male characters (Otokoyaku). She joined the revue in 1988 and resigned in 2006. Her nicknames are Takako (from her real name: Takako Ōkawa (大川 貴子 Ōkawa Takako) and Wao. She is the only Otokoyaku to be top in her class as well as the last otokoyaku top star to have joined the company during the Shōwa era. She was born and raised in Osaka (according to Takarazuka Graph 2003 April issue).