Banana Fish (stylized in all caps) is a Japanese manga series written and illustrated by Akimi Yoshida. It was serialized in the monthly manga magazine Bessatsu Shōjo Comic from 1985 to 1994, and collected into nineteen tankōbon volumes by Shogakukan. Banana Fish follows the relationship between Ash Lynx, a teenage gang leader in New York City, and Eiji Okumura, a Japanese photographer’s assistant. Though Banana Fish is not a boys’ love (BL) series, critics have noted the series’ depiction of homosexuality and homoeroticism as having been influenced by (and in turn having influenced) the boys’ love genre. The series is further noted for achieving crossover success between audiences of shōjo manga (girls’ manga) and shōnen manga (boys’ manga).
The series was adapted into a 24-episode anime television series by MAPPA in 2018, which aired on Noitamina; the series is syndicated globally on Amazon Prime Video, which simulcast the series during its original broadcast run. An English-language translation of the manga was published in North America by Viz Media, which serialized Banana Fish in the manga magazines Pulp and Animerica Extra.