Family name Hirotoshi (Hirotoshi 
) , throughout the world, is a rare surname. The last name Hirotoshi is habitual in Japan, where it is a rare surname, Hungary, and Singapore. In absolute terms, it is commonest in Japan, China, and Hungary. Predominantly, Hirotoshi is the forename as well as the last name.
Abe, Arakawa, Hayashi, Ichikawa, Yoshida, Murakami, Sakamoto, Kawamura, Takeuchi, Takiyama, Nakamura, Nakagawa, Nakajima, Hasegawa, Ishikawa, Watanabe, Yamamoto, Yamazaki, Matsumoto, Kobayashi, Takahashi, Hashimoto, Yamada, Ishida, Fujita, Tanaka, Ito, Ono, Ota, Mori, Sato, Kato, Kubo, Goto, Yano, Ueno, Yamashita, Maeda, Saito, Kondo, Inoue, Ikeda, Okada, Ogawa, Masuda, Sasaki, Suzuki, Kimura, Miura, and Yamaguchi