Hiroshi Hirata is a Japanese manga artist best known in the United States for the samurai manga series Satsuma Gishiden, which is published in the United States by Dark Horse Comics. Hirata's works belong to the subset of manga known as "gekiga", and his artwork has a realistic style comparable to Goseki Kojima's work on Lone Wolf and Cub. He's also known for his use of elaborate calligraphy for dialogue, which has been preserved in the American editions of his work.
According to Frederik L. Schodt's Dreamland Japan: Writings on Modern Manga, famed Japanese author and militarist Yukio Mishima admired Hirata's work. Also, Usagi Yojimbo creator Stan Sakai has praised Hirata's artwork.
Hirata is one of the very few manga authors whose work has been translated into Hindi. A translation by Yoshiyo Takakura of his 1978 manga Chi Daruma Kenpo was published by Yukichi Yamamatsu's Delhi-based Ganga Yamato Company in 2005.