Masumi Ito is a singer, songwriter and composer. Itou has composed the soundtracks to many anime television shows, and is part of the bands Oranges & Lemons and Heart of Air. She graduated from Musashino College of Music.
- Known For: Sound
- Place of Birth: Hitachi, Ibaraki Prefecture, Japan
- Also Known As: Hikaru Nanase, 伊藤 真澄 , 七瀬 光 , Nanase Hikaru, Masumi Itô, Itō Masumi, Ito Masumi, Itô Masumi, Masumi Itō, Masumi Nitta, Masumi Itou