Ayaka Nishiwaki
- Birth Date
- 2/15/1989
- Birth Place
- Hiroshima, Hiroshima Prefecture, Japan
- Known For
- Acting
Ayaka Nishiwaki (西脇 綾香, Nishiwaki Ayaka), nicknamed A~chan (あ～ちゃん, stylized as a-chan), is a Japanese singer and dancer. She is known as one of the members of the Japanese electropop group Perfume.
