Hideo is a masculine Japanese given name. Notable people with the name include:
Hideo Den (田 英夫, 1923–2009), Japanese politician and news presenter
Hideo Fujimoto (藤本 英雄, 1918–1997), Japanese baseball player
Hideo Fukui (福井 英郎, born 1977), Japanese athlete who competes in triathlon
Hideo Fukuyama (福山 英朗, born 1955), Japanese NASCAR driver
Hideo Gosha (五社 英雄, 1929–1992), Japanese film director
Hideo Hagiwara (萩原 英雄, 1913–2007), Japanese artist
Hideo Hashimoto (橋本 英郎, born 1979), Japanese footballer
Hideo Higashikokubaru (東国原 英夫, born 1957), Japanese comedian, best known for his role in Takeshi's Castle and the current governor of Miyazaki Prefecture
Hideo Hiraoka (平岡 秀夫, born 1954), Japanese politician
Hideo Ishikawa (石川 英郎, born 1969), Japanese voice actor
Hideo Itokawa (糸川 英夫, 1912–1999), Japanese aerospace engineer
Hideo Iwakuro (岩畔 豪雄, 1897–1970), World War II Imperial Japanese Army general
Hideo Jinpu (神風 英男, born 1961), Japanese politician
Hideo Kanaya (金谷 秀夫, born 1945), former Grand Prix motorcyclist
Hideo Kanze (観世 栄夫, 1927–2007), Japanese actor
Hideo Kobayashi (小林 秀雄, 1902–1983), Japanese author
Hideo Kojima (小島 秀夫, born 1963), Japanese video game director
Hideo Levy (リービ 英雄, born 1950), American-born Japanese language author
Hideo Mizumori, Japanese singer
Hideo Murai (村井 秀夫, 1958-1995), Japanese scientist
Hideo Murata (村田英雄, 1929–2002), Japanese rōkyoku and enka singer
Hideo Murota (室田 日出男, 1937–2002), Japanese actor
Hideo Nagata (長田秀雄, 1885–1949), Japanese poet and playwright
Hideo Nakata (中田 秀夫), Japanese film director
Hideo Nomo (野茂 英雄), Japanese baseball player
Hideo Ogata (尾形英夫, 1934–2007), Japanese anime film producer
Hideo Oguma (小熊秀雄, 1901–1940), Japanese author
Hideo Ohba (大庭 英雄, 1910–1986), Japanese martial artist
Hideo Ōshima (大島 秀夫, born 1980), Japanese football player
Hideo Otake (大竹 英雄, born 1942), Japanese Go player
Hideo Sakaki (榊 英雄, born 1970), Japanese actor
Hideo Sakamaki, president of Nomura Securities between 1991–1997
Hideo Sasaki (1919–2000), American landscape architect
Hideo Seaver, American voice actor
Hideo Tokoro (born 1977), Japanese martial artist
Hideo Usui (born 1939) (臼井 日出男), Japanese politician
Hideo Watanabe (渡辺 秀央, born 1934), Japanese politician
Hideo Yamamoto (山本 英夫, born 1968), Japanese manga artist
Hideo Yoritaka (頼高 英雄, born 1963), Japanese politician
Hideo "Pop" Yoshimura (1922-1995), Japanese Motorcycle tuner and factory Suzuki team owner
Hideo Yoshino (吉野 秀雄, 1902–1967), Japanese tanka poet
Hideo Yoshizawa (吉沢 秀雄), Japanese video game developer and director
Fictional characters:
Hideo Kuze, character from the anime, Ghost in the Shell: S.A.C. 2nd GIG
Hideo Minagawa, character from the Initial D manga series