三石琴乃（Mitsuishi Kotono），日本著名女配音员。参与过《高智能方程式》、《美少女战士》、《新世纪福音战士》、《机动战士高达SEED》、《哆啦A梦（水田版）》等多部热卖动画主角的演出。声音既沉稳又热情，配音角色多为实力派的女强人。

三石琴乃，日本女性配音員、旁白。出身於東京都。

Kotono Mitsuishi is a Japanese voice actress and narrator from Toda, Saitama. She was affiliated with Arts Vision and Lasley Arrow. As a young girl, Mitsuishi lived in Nagareyama, Chiba. Mitsuishi graduated from high school in 1986, and entered the Katsuta Voice Actor's Academy.

In 1988, Mitsuishi made her voice acting debut as Tomoyo in the OVA Ace wo Nerae! 2. She became an instant celebrity with her role as Usagi Tsukino, when Sailor Moon debuted in 1992, and her popularity increased again with her role as Misato Katsuragi in the anime television series Neon Genesis Evangelion, as well as Murrue Ramius in both Mobile Suit Gundam SEED and Mobile Suit Gundam SEED Destiny, in 2002 and 2004 respectively.