Ryōka Yuzuki (柚木 涼香 Yuzuki Ryōka, born January 10, 1974) is a seiyū who was born in Anjo, Aichi, Japan. Her younger sister is adult comic strip artist Sayumi Sakuragi (桜木さゆみ).
She used to do a lot of live action work when she was a teen under the name Ayumi Nagashii (永椎 あゆみ Nagashii Ayumi). She later became an idol under the name Kanori Kadomatsu (角松 かのり Kadomatsu Kanori), appearing in men's magazines and V-Cinema. Several of the films were very explicit in violence, sex and nudity. Trying to break out of the horror/exploitation genre and back into legitimate cinema, she briefly changed her name back to Ayumi Nagashii (永椎 あゆ美 Nagashii Ayumi) and began working on the occasional anime as a voice actress. On November 1, 1998 she changed her name to Ryōka Yuzuki and currently focuses mainly on voice work.