Masao

Masao (written: 正雄, 正夫, 正生, 正男, 正郎, 雅雄, 雅央, 雅夫, 雅勇, 雅男, 昌雄, 昌夫, 昌男, 昌朗, 昌郎, 昌大, 政雄, 政夫, 政男, 政於, 征夫, 優夫, 聖雄, 利生, 将雄, 将夫 or 眞男) is a masculine Japanese given name. Notable people with the name include:


 * Masao Abe (阿部 正雄), Japanese philosopher and writer
 * Masao Adachi (足立 正生), Japanese screenwriter and film director
 * Masao Akamatsu (赤松 正雄), Japanese politician
 * Amatsukaze Masao (天津風 征夫), Japanese sumo wrestler
 * Masao Arai (荒井 政雄), Japanese sport wrestler
 * Masao Azuma (東 雅雄), Japanese motorcycle racer
 * Baba Masao (馬場 正郎), Japanese general
 * Masao Doi, Japanese academic
 * Masao Fujii (藤井 将雄), Japanese baseball player
 * Masao Gozu (郷津 雅夫), Japanese photographer and sculptor
 * Inaba Masao, Japanese military officer and rebel
 * Masao Haji (土師 政雄), Japanese activist and academic
 * Masao Harada (原田 正夫), Japanese triple jumper
 * Masao Horino (堀野 正雄), Japanese photographer
 * Masao Ichihara (市原 正雄), Japanese sprinter
 * Masao Inoue (actor) (井上 正夫), Japanese actor and film director
 * Masao Inoue (wrestler) (井上 雅央), Japanese professional wrestler
 * Masao Ito (伊藤 正男), Japanese neuroscientist
 * Masao Iwasato (岩里 政男), former President of the Republic of China (Taiwan)
 * Masao Kanamitsu (1943–2011), Japanese American meteorologist
 * Masao Kato (加藤 正夫), Japanese Go player
 * Masao Kawai (河合 雅雄), Japanese primatologist
 * Masao Kiba (木場 昌雄), Japanese footballer
 * Masao Kida (木田 優夫), Japanese baseball player
 * Masao Kinoshita (木下 政雄), Japanese businessman
 * Masao Kitagawa (北川 政夫), Japanese botanist
 * Kiyonomori Masao (清の盛 政夫), Japanese sumo wrestler
 * Masao Kobayashi (小林 正夫), Japanese politician
 * Masao Koga (古賀 政男), Japanese composer and guitarist
 * Masao Komatsu (小松政夫), Japanese actor
 * Masao Kotani (小谷 正雄), Japanese theoretical physicist
 * Masao Kume (久米 正雄), Japanese playwright, writer and poet
 * Masao Maeda (前田 政雄), Japanese printmaker
 * Masao Maruyama (film producer) (丸山 正雄), Japanese animator and film producer
 * Masao Maruyama (Japanese Army officer) (丸山 政男), Japanese general
 * Masao Maruyama (scholar) (丸山 眞男), Japanese political scientist and historian
 * Masao Mimatsu (三松 正夫), Japanese volcanologist
 * Masao Miyamoto (宮本 政於), Japanese psychiatrist
 * Masao Miyoshi (三好 将夫), Japanese sociologist
 * Masao Morinaka (森中 聖雄), Japanese baseball player
 * Masao Mukai (向井 正雄), Japanese conductor
 * Masao Murano (村野 正夫), Japanese ice hockey player
 * Masao Murata (村田 正夫), Japanese judoka
 * Masao Nakabori (中堀 正夫), Japanese cinematographer
 * Masao Nakamura (中村 正雄), Japanese general
 * Masao Nakayama (中山 利生), Japanese politician and diplomat
 * Masao Nozawa (野澤 正雄), Japanese footballer
 * Masao Ohba (大場 政夫), Japanese boxer
 * Masao Ono (大埜 正雄), Japanese footballer
 * Masao Orihara (折原 昌夫), Japanese professional wrestler
 * Masao Sasakibara (佐々木原 正夫), Japanese World War II flying ace
 * Masao Sen (千 昌夫), Japanese singer
 * Masao Shimizu (清水 将夫), Japanese actor
 * Masao Suenaga (末永 正雄), Japanese drifting driver
 * Masao Sugimoto (born 1967), Japanese footballer
 * Masao Sugiuchi (杉内 雅男), Japanese Go player
 * Masao Takada, Japanese footballer
 * Masao Takagi (高木 正雄), former President of South Korea
 * Masao Takahashi (born 1929), Canadian judoka
 * Masao Takemoto (竹本 正男), Japanese artistic gymnast
 * Masao Takenaka (1925–2006), Japanese theologian
 * Masao Takiyama (滝山 正夫), Japanese television producer
 * Masao Tsuchida, Japanese baseball player
 * Masao Tsukada (塚田 正夫), Japanese shogi player
 * Masao Uchino (内野 正雄), Japanese footballer and manager
 * Masao Urino (売野 雅勇), Japanese lyricist, screenwriter and film director
 * Masao Watanabe (渡辺 正夫), Japanese general
 * Masao Yagi (八木正生), Japanese jazz musician
 * Masao Yamaguchi (山口 昌男), Japanese anthropologist
 * Masao Yamamoto (山本 昌男), Japanese photographer
 * Masao Yoshida (disambiguation), multiple people