Shūichi, Shuichi or Shuuichi is a masculine Japanese given name. Notable people with the name include:
, Japanese politician , Japanese footballer , Japanese voice actor , Japanese sport wrestler , Japanese footballer and manager , Japanese long-distance runner , author of Initial D , Japanese long-distance runner , Japanese writer
Fictional characters , the main character in the visual novel Danganronpa V3: Killing Harmony , the main character of the manga and anime series Gravitation , a character in the manga series Uzumaki , a character in the manga series Hana-Kimi , the main character of the manga and anime series Wandering Son , a character in the manga series Case Closed / Detective Conan , better known as Spinner, is a major antagonist of the manga and anime series My Hero Academia