Ayaka Saitō (齋藤 彩夏, Saitō Ayaka, born June 2, 1988 in Tokyo) is a Japanese voice actress currently employed by Vocal. She's best known for voicing Momiji Sohma in Fruits Basket, Tomoka Rana Jude in Girls Bravo, and Mitsukuni Haninozuka in Ouran High School Host Club and Ruby in the Jewelpet Franchise.

She has great respect for her Ouran co-star Maaya Sakamoto, and calls the older lady "Onee-sama" (お姉さま, a very respectful way of saying "elder sister").