Miyu Hanasaki is a Japanese voice actress from Osaka Prefecture. She is affiliated with the agency BLACK SHIP. Her birthday is January 28, and she stands 154 cm tall. Her blood type is A, and she speaks the Kansai dialect. Her hobbies include illustration and video games, and her special skills are dancing and typing.

Hanasaki graduated from the voice acting program at Osaka Amusement Media Comprehensive College in 2019. She began her voice acting activities in 2021 with her debut role as V维尔 in the game Black Knight & White Devil.

In anime, her early roles in 2022 included a TRIGGER fan in IDOLiSH7 Third BEAT! and a schoolgirl in A Couple of Cuckoos. In 2023, she appeared in numerous series such as D4DJ All Mix, The Strongest Sage with the Weakest Crest, The Iceblade Sorcerer Shall Rule the World, and The Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too Far, typically voicing supporting characters like students and passersby.

More recently, Hanasaki has been cast in the role of Yume-chan in the television anime adaptation of 2200-Nen Neko no Kuni Nippon, which is set to premiere in October 2025. She also has the role of Claudia von Gayta Neega in the anime Fuguu-shoku Kanteishi ga Jitsu wa Saikyou Datta.

Her other notable anime credits include roles in BanG Dream! Ave Mujica, Visual Prison, The Magical Revolution of the Reincarnated Princess and the Genius Young Lady, and The Great Cleric.

In video games, her work includes roles in Heaven Burns Red as Faeria and Origa, Cookie Run: Kingdom, and the Japanese dub of games like Light: The Voice of Your Heart and Dark Tales: Mirror and Crazy Princess. In the latter, she voiced multiple characters including Naisei, Chang'e, and Midori. She also voiced characters in Star Wings and Magic Tower Reincarnation.