Alice 19th is a Japanese shōjo manga written by Yuu Watase. It appeared as a serial in the manga magazine Shōjo Comic.

Yuu Watase is a Japanese manga artist. She debuted in 1989 at the age of 18 with the short story "Pajama de Ojama" and has since published more than 50 volumes of one-shots and long-running manga series. One of her most popular titles is Fushigi Yûgi. In 1998, Watase won the 43rd Shogakukan Manga Award in the shōjo (girls') category for Ceres, Celestial Legend. In 2008, she began her first shōnen (boys') serialization, Arata: The Legend.