Hiroshi Gamou is the pen name of a Japanese manga artist and picture book author, born on August 17, 1962, in Tokyo. He grew up in Koshigaya, Saitama Prefecture, where he continues to reside. Gamou made his professional debut in July 1985, while a university senior, with the short work Rinki Ohen Man published in Fresh Jump magazine. His career began after receiving an honorable mention for the Akatsuka Award in 1984 for the work Negura Kamen.

Gamou is best known as the creator of the manga series Tottemo! Luckyman, which was serialized in Weekly Shonen Jump from August 1993 to July 1997. The series was compiled into 16 tankobon volumes. A gag comedy centered on a bizarre superhero who relies on luck rather than strength, Tottemo! Luckyman was adapted into a 50-episode anime television series produced by Studio Pierrot and broadcast on TV Tokyo from April 1994 to March 1995. The series also spawned two video game adaptations for the Game Boy and Super Famicom consoles, and the titular character has appeared in crossover video games such as Jump Ultimate Stars and J-Stars Victory VS.

Gamou’s earlier serialized works include Rinki Ohen Man, which ran from 1985 to 1987 and was collected in four volumes, and Super Boya Ken-chan, serialized from 1987 to 1988 and collected in two volumes. Following the success of Tottemo! Luckyman, he created the short serials Boku wa Shonen Tantei Dan, which ran from 1998 to 1999, and Bakabakashino in 2000. In 2008, he published a picture book titled Deta~ Wantsu Pantsukun as part of the Shueisha series.

Known primarily for comedy and superhero-themed works, Gamou’s artistic identity includes a distinctive drawing style that has been noted as unconventional. His career is marked by a focus on humorous narratives featuring characters with unusual transformation sequences and parodic elements. After his major serializations, his public activities became less frequent, though he remains a recognized figure for his contributions to 1990s manga and anime.