Hosokawa is a Japanese surname.
People with the name include:
Bill Hosokawa (1915 - 2007), Japanese American author and journalist
Chieko Hosokawa (born 1929), a Japanese manga artist
Hajime Hosokawa (1901-1970), Japanese doctor who discovered Minamata disease
Morihiro Hosokawa (born 1938), 79th Prime Minister of Japan
Naomi Hosokawa (born 1974), Japanese actress
Shigeki Hosokawa (born 1971), Japanese actor and former model
Toshio Hosokawa (born 1955), Japanese composer of contemporary classical music
The Hosokawa clan were a powerful shugo daimyo in Japan.
Hosokawa Akiuji, samurai general in the service of the Ashikaga Northern Court, during Nanboku-cho period
Hosokawa Fujitaka (1534 - 1610), member of the Ashikaga court
Hosokawa Gracia (1563 - 1600), childhood name Tama, Japanese noblewoman and wife of Hosokawa Tadaoki
Hosokawa Harumoto (1514 - 1563), head of Hosokawa clan at the end of the Muromachi period
Hosokawa Katsumoto (1430 - 1473), one of the Kanrei during Japan's Muromachi Period
Hosokawa Masamoto (1466 - 1507) a Deputy-Shogun, sun of Katsumoto
Hosokawa Mitsunao (1619 - 1650), a daimyo of the early Edo period.
Hosokawa Sumimoto (1489 - 1520), military commander in the Muromachi period
Hosokawa Sumiyuki (1489 - 1507), a notable Daimyo of the Awa province
Hosokawa Tadaoki (1563 - 1645), lord of Tango province, son of Hosokawa Fujitaka
Hosokawa Tadatoshi (1586 - 1641), daimyo of the early Edo period
Hosokawa Takakuni (1484 - 1531), military commander in the Muromachi period
Hosokawa Ujitsuna (1514 - 1564) was a military commander at the end of the Muromachi period