Yuri Shimai was a yuri manga anthology magazine published quarterly by Japanese publisher Sun Magazine.The magazine existed between June 2003 and November 2004. It was part of what still is a small niche market, with only a few manga magazines in Japan that specializes in the yuri genre. The magazine also contained one-shots and light novels. The magazine was discontinued in November 2004 with the fifth volume. The magazine's cover illustrations were done by Reine Hibiki, the illustrator of the yuri light novel series Maria-sama ga Miteru.

Yuri , also known by the wasei-eigo construction girls' love , is a genre of Japanese media focusing on intimate relationships between female characters. While lesbian relationships are a commonly associated theme, the genre is also inclusive of works depicting emotional and spiritual relationships between women that are not necessarily romantic or sexual in nature. Yuri is most commonly associated with anime and manga, though the term has also been used to describe video games, light novels, and literature.