Yū Amamiya is a Japanese voice actor known primarily for work in adult visual novels and their anime adaptations. Information on their career background and notable achievements is unavailable, but a number of voice roles have been documented across various series.

In the visual novel Saiminjutsu 2nd and its anime adaptation, Saimin Jutsu The Animation 2nd, Yū Amamiya voiced the character Shino Takase. For the series Kimi ga Aruji de Shitsuji ga Ore de, they provided the voice for Chiharu Kiyohara, a male character noted for his feminine appearance.

Additional roles include Miyuki Todo in the visual novel Mesu Kyōshi - Injoku no Kyōshitsu, and Rosalia in the anime series The Dark Chapel. No information is available regarding recurring collaborations, additional major voice roles beyond those listed, or notable achievements.