is a Japanese voice actress and singer from Tokyo, Japan. She is represented by Ken Production. She won a "Best Actress in Supporting Roles" award at the 10th Seiyu Awards for her roles in Prison School and Sailor Moon Crystal. She is well known for her anime voice roles as Akeno Himejima in High School DxD, Sailor Venus/Minako Aino in Sailor Moon Crystal, Kaori Kanzaki in A Certain Magical Index, Lenalee Lee in D.Gray-man, Irina Jelevic in Assassination Classroom, Meiko Shiraki in Prison School, Koko Hekmatyar in Jormungand, Ryoko Okami in Okami-san and Her Seven Companions, Hilda in Beelzebub, Hinagiku Katsura in Hayate the Combat Butler, and many.
She and fellow voice actress Hitomi Nabatame formed a voice acting unit called "Hitomi Nabatame and Shizuka Ità Â". Together they are known by the name , which is Japanese for "a single droplet". In 2012, she announced that she had gotten married. On April 30, 2020, Ità  announced that she had gotten divorced.