|Japanese name:||志崎 綾|
|School:||Achiga Girls' Academy|
|Grade:||First-year middle school|
|Debut:||Saki Achiga-hen, Chapter 1|
|Voiced by:||Yuiko Tatsumi|
Aya Shizaki is a supporting character of the Saki Achiga-hen episode of side-A manga and anime. Aya is a student at Achiga Girls' Academy. She was a member of the Achiga children's mahjong club before it was disbanded.
Aya has short dark brown hair and brown eyes.
Final Eight Arc
Aya appears with Sakurako and Hina before the start of the final eight matches. They watch the televised broadcast, wondering who will call Achiga's match.