Aki Toyosaki (豊崎愛生, Toyosaki Aki, born October 28, 1986) is a Japanese seiyū and singer born in Tokushima, Japan. She is best known for her roles in Shugo Chara! and Kenkō Zenrakei Suieibu Umishō. Her career as a musician began with her performance of the opening and ending themes of the anime series K-On! in April 2009.