|Place of birth:||:||Kanagawa Prefecture, Japan|
|Also Known as||:||Hikasa Yoko|
Youko Hikasa is a Japanese voice actress and singer, currently affiliated with I'm Enterprise. She aspired to become a voice actress after watching Sailor Moon, and later attended Nihon Narration Engi Kenkyuujo, a seiyuu training school. Her major breakthrough was the leading role as Mio Akiyama in the hit series K-ON.