Seitaro Hattori

He started working at the Fukuoka Agriculture and Forestry Office and in 1977. He become the director of the Academic Affairs Division, Private School Promotion Bureau, General Affairs Department in 2004. He become the first person from within the government to be appointed as Director of the Finance Division, General Affairs Department in 2006. He become deputy director of General Affairs Department in 2009 and he was promoted as the Director of Welfare and Labor Affairs Department in 2010.^[2][3][4]

On September 13, 2011, He was appointed as Vice Governor of Fukuoka, replacing then-Vice Governor Nagao Ushio resigned.^[3] On August 25, 2017, after then-governor Hiroshi Ogawa was hospitalized after underging surgery to remove a tumor from his liver, he becomes the acting Governor of Fukuoka for two weeks.^[5] He once again became acting governor after Ogawa was hospitalized in January 2021 and later resigned as Governor of Fukuoka on February 22.^[6][4]

He announced that he would run for governor after Ogawa announced his resignation.^[4] Although independent, he was endorsed and supported by the all three factions of Liberal Democratic Party (LDP) in Fukuoka which is the first time since a conservative split in 2008.^[7] He also received endorsement from the Constitutional Democratic Party of Japan, Komeito, the Social Democratic Party of Japan, and the Prefectural Agricultural Policy Association. He won by a landslide against Mieko Hoshino garnering 992,255 votes. He was the first governor in Fukuoka to be elected that previously works within the prefectural government.^{[8][9][10][11]} He was reelected for the second term in 2025 receiving 1,036,280 votes.^[12]

He is married and has three daughters.^[13][2]