Kiyono Yasuno (安野 希世乃, Yasuno Kiyono, July 9, 1989) is a Japanese voice actress and singer from Wakuya Town, Toda District, Miyagi Prefecture. She is attached to Avex Pictures (talent agency) and Flying Dog (music label). Her former stage name is Kiyono Mezawa (目澤 希世乃, Mezawa Kiyono).
- Title: Kiyono Yasuno
- Popularity: 7.979
- Known For: Acting
- Birthday: 1989-07-09
- Place of Birth: Wakuya, Miyagi, Japan
- Homepage: https://avex.jp/kiyono-yasuno/
- Also Known As: 安野希世乃, Kiyono Mezawa, 目澤希世乃, ぽかぽかイオン, Pokapoka Ion