Shiro Sagisu (鷺巣 詩郎; Sagisu Shirō, born August 29, 1957) is a well-known Japanese music producer and composer. With a career spanning over 25 years (which began in the late 1970s), Sagisu has worked as a film composer for several anime and films and is well known for his collaborations with Gainax, especially the soundtrack to Hideaki Anno’s series Neon Genesis Evangelion, for which he won the Tokyo Anime Award for Best Music in 2010 for Evangelion: 2.0 You Can (Not) Advance.

Sagisu’s music has been highly credited for its high-quality production and great sound. Although he has created music for many other anime shows and movies, Sagisu is most credited for his music from Neon Genesis Evangelion. The music he composed for the popular anime show has received high praise amongst many anime fans in Japan and in other nations alike, receiving not only awards but also a CD album release which became a bestseller compared to other anime soundtrack albums, earning millions of sales across Japan and overseas in many other nations, especially in the United States and various parts of Europe.