Seishirō
Seishirō, Seishiro or Seishirou is a masculine Japanese given name. Notable people with the name include:
- Seishiro Endo, Japanese aikidoka
- Seishiro Etō, Japanese politician
- Seishirō Itagaki, Japanese general
- Seishiro Kato, Japanese child actor
- Seishirō Nishida, Japanese actor
- Seishiro Okazaki, Japanese American jujutsuka
- Seishirō Sakamoto, Japanese baseball player
- Seishiro Shimatani, Japanese footballer
Fictional characters
- Blue Lock#Characters, a character in the manga series Blue Lock
- Seishirō Sakurazuka, a character in the manga series Tokyo Babylon
- List of Tsubasa: Reservoir Chronicle characters#Seishir.C5.8D, a character in the manga series ''Tsubasa ~RESERVoir CHRoNiCLE~''