Hoshina (written: 保科) is a Japanese surname. Notable people with the surname include:
Hoshina Masaari (保科 正益) (1833–1888), Japanese daimyōHoshina Masakage (保科 正景) (1616–1700), Japanese daimyōHoshina Masamitsu (保科 正光) (1561–1631), Japanese daimyōHoshina Masanao (保科 正直) (1542–1601), Japanese daimyōHoshina Masasada (保科 正貞) (1588–1661), Japanese daimyōHoshina Masatoshi (保科 正俊) (1509–1593), Japanese samuraiHoshina Masayuki (保科 正之) (1611–1673), Japanese daimyōTomohiko Hoshina (智彦 保科) (born 1987), Filipino-Japanese judokaFictional characters:
Utau Hoshina (ほしな 歌唄), character in the manga series Shugo Chara!