Asada Youko, born May 23, 1969 is a female Japanese voice actress from Hyougo Prefecture. She is affiliated with the talent management firm 81 Produce.
Nakayama Ruriko is an alias used by Asada Youko for adult games and anime.
- Known For: Acting
- Birthday: 1969-05-23
- Place of Birth: Hyōgo Prefecture, Japan
- Also Known As: Yôko Asada, Asada Yôko, Yōko Asada, Asada Yōko, Yoko Asada, Asada Yoko, Asada Youko / 浅田 葉子, Nakayama Ruriko / 中山瑠璃子