Shion Tamenaga
- Birthday: 2/9/2004
- Place of birth: Nagano, Japan
- Fame for: Acting
- Also known as: Tamenaga Shion (為永幸音), Tamenaga Shion, OTO♡, Tamechan, ためちゃん, Shion-chan, しおんちゃん, Shionnu, しおんぬ, Tame, ため
Biography
為永幸音 (Tamenaga Shion) is a Japanese pop singer under Hello! Project as a 9th generation member of ANGERME. She is a former member of Hello Pro Kenshuusei. Prior to joining Hello! Project, she was active as a Nagano local idol.