Ryōko Tanaka (田中涼子 ,Tanaka Ryōko?, born July 28) is a female Japanese voice actress from Tokyo, Japan. She works for the company Pro Fit.

Anime :
* _Summer as Kasumi Suda
* 3000 Leagues in Search of Mother
* Agent Aika as Blue B; White Delmo S
* Battle Athletes Victory
* Chūka Ichiban
* DT Eightron
* Gift as Ibuki Yajima
* Himitsu no Akko-chan
* Kakyūsei 2 as Hiroku Hirasawa
* Koji Koji
* Lost Universe
* Sakura Diaries
* Shuffle! as Tsubomi
* School Days as Hikari Kuroda
* H2O: Footprints in the Sand as Hinata Kagura
* Kodomo no Jikan as Kyōko Hōin

Games :
* Aoi Namida
* Ayakashibito
* I/O
* Iinazuke
* Little Busters! as Yuiko Kurugaya
* Shuffle! on the Stage
* Really? Really!