Ayu Manaka
- Title: Ayu Manaka
- Popularity: 1.145
- Known For: Acting
- Birthday: 1987-10-18
- Place of Birth: Toyama, Toyama, Japan
- Homepage: https://www.watanabepro.co.jp/mypage/20000036/
- Also Known As: 愛加 あゆ, マナカ アユ, Manaka Ayu, 赤根 伶奈, 赤咲 伶奈, あゆ, あゆっち, Rena Akane, Rena Akasaki, れな