Saitō Hajime

Saitō Hajime
Saitō Hajime in 1897
Native name
斎藤 一
Birth nameYamaguchi Hajime
Other namesYamaguchi Jirō
Ichinose Denpachi
Fujita Gorō
Born(1844-02-18)February 18, 1844
DiedSeptember 28, 1915(1915-09-28) (aged 71)
Buried
Amidaji, Aizuwakamatsu, Fukushima, Japan
AllegianceTokugawa bakufu
Aizu Domain
BranchRōshigumi (former)
Mibu Rōshigumi (former)
Shinsengumi
Suzakutai
Service years1862–1869
RankCaptain
CommandsShinsengumi third unit
ConflictsIkedaya incident
Kinmon incident
Tenmaya incident
Boshin War Satsuma Rebellion
Spouses
Shinoda Yaso
(m. 1871⁠–⁠1874)
Takagi Tokio
(m. 1874)
ChildrenFujita Tsutomu (son)
Fujita Tsuyoshi (son)
Numazawa Tatsuo (son)
RelationsYamaguchi Yūsuke (father)
Masu (mother)
Yamaguchi Hiroaki (brother)
Soma Katsu (sister)
Other workPolice officer
Police career
CountryTokyo
AllegianceTokyo Metropolitan Government
DepartmentTokyo Metropolitan Police Department
Service years1877–1890
StatusRetired
RankPolice Inspector
Other workGuard at Tokyo National Museum (1890–1899)
Clerk, accountant at Tokyo Women's Normal School (1899–1909)

Saitō Hajime (斎藤 一) (born Yamaguchi Hajime (山口 一); February 18, 1844 – September 28, 1915) was a Japanese samurai of the late Edo period, who most famously served as the captain of the third unit of the Shinsengumi. He was one of the few core members who survived the numerous wars of the Bakumatsu period. He was later known as Fujita Gorō (藤田 五郎) and worked as a police officer in Tokyo during the Meiji Restoration where he worked mostly undercover for them and for the Japanese government.