Goshi Hosono (細野 豪志, Hosono Gōshi, born 8 August 1971) is a Japanese politician of the Democratic Party (DP), a member of the House of Representatives in the Diet (national legislature). A native of Ōmihachiman, Shiga and graduate of Kyoto University, he was elected to the House of Representatives for the first time in 2000. He is the current Nuclear Disaster Minister of Japan. In September 2011 he was re-appointed as Nuclear Disaster Minister and also appointed as Minister of the Environment in the cabinet of newly appointed prime minister Yoshihiko Noda.
Goshi Hosono considered running in the September 2012 Democratic Party of Japan (DPJ) presidential elections against incumbent Yoshihiko Noda, but was eventually dissuaded from doing so by senior members of the party.
Goshi Hosono is a protegé of DPJ Secretary General Azuma Koshiishi, who sees him as a potential future Prime Minister.
After Noda's re-election as party president, and re-appointment of Koshiishi as Secretary General of the DPJ, Noda persuaded Hosono to become chairman of the party Policy Research Committee. The appointment of the popular 41-year-old Hosono was seen as important in preparing for the upcoming general election.
After the DPJ's loss in the December 2012 election, the party went into opposition. Hosono was cited as a possible successor to the party's leader Banri Kaieda.
As of August 2017, Hosono is planning to leave the Democratic Party, the successor of the DPJ, and form his own political party. His reason for wanting to leave the party is because of its policy on security and amending the Constitution.