Yūko Miyamura (宮村 優子, Miyamura Yūko, born December 4, 1972) is a Japanese actress, voice actress, singer and sound director. Her nickname is Miyamū (みやむー). She played Kazuha Toyama in Detective Conan, Casca in Berserk and Asuka Langley Soryu in Neon Genesis Evangelion.^[2]

Miyamura was born in Kobe, and graduated from the theater division for Toho Gakuen College of Drama and Music. She was diagnosed with Graves' disease and exophthalmos in May 2007.^[3] She was initially married to manga artist, Nakatani D. from 1998 to 1999. Miyamura married stuntman Takayuki Seki in 2004. They had two children together, a daughter born in 2004 and a son born in 2011, before they divorced in 2016.^[4] The family lived in Melbourne, Australia, until she returned to Japan.

Miyamura released various CD albums as a singer, which feature collaborations with well-known Japanese musicians, such as P-Model vocalist/Berserk series composer Susumu Hirasawa, Yapoos vocalist Jun Togawa and Pizzicato Five vocalist Yasuharu Konishi. Additionally, she also had a short on-screen role in the movie Battle Royale as the video announcer of the event's rules. She is affiliated with Techno Sound as a sound director and Japan Action Enterprises.