Masaaki (written: 政明, 雅明, 正明, 昌明, 方明, 真明, 将明, 良昭, 正昭, 政昭, 順昭, 雅昭, 正朗, 正晃, 成晃, 将晃, 正章, 雅章, 誠章, 正秋 or 真秋) is a masculine Japanese given name. Notable people with the name include:
Masaaki Akaike (赤池 誠章) (born 1961), Japanese politician
Masaaki Endoh (遠藤 正明) (born 1967), Japanese singer-songwriter
Masaaki Furukawa (古川 昌明) (born 1968), Japanese footballer
Masaaki Hatsumi (初見 良昭) (born 1931), Japanese ninjutsu practitioner
Masaaki Higashiguchi (東口 順昭) (born 1986), Japanese footballer
Masaaki Hirano (平野 雅章) (1931–2008), Japanese food historian
Masaaki Hiyama (日山 正明) (born 1959), Japanese drummer
Masaaki Ideguchi (井手口 正昭) (born 1988), Japanese footballer
Masaaki Iinuma (飯沼 正明) (1912–1941), Japanese aviator
Masaaki Imai (born 1930), Japanese business theorist
Inaba Masaaki (稲葉 正明) (1723–1793), Japanese daimyō
Masaaki Itokawa (糸川 正晃) (born 1974), Japanese politician
Masaaki Kanagawa (金川 正明) (born 1955), Japanese Go player
Masaaki Kanda (神田 真秋) (born 1951), Japanese politician
Masaaki Kaneko (金子 正明) (born 1940), Japanese sport wrestler
Masaaki Kanno (菅野 将晃) (born 1960), Japanese footballer and manager
Masaaki Kato (加藤 正明) (born 1958), Japanese footballer
Masaaki Kimura (木村 政昭) (born 1940), Japanese academic
Masaaki Kishibe (岸部 真明) (born 1964), Japanese guitarist
Masaaki Koido (born 1978), Japanese footballer
Masaaki Kozu (神津 正昭) (born 1974), Japanese cross-country skier
Masaaki Kukino (久木野 雅昭), Japanese video game producer
Masaaki Mochizuki (望月 成晃) (born 1970), Japanese professional wrestler
Masaaki Mori (森 正明) (born 1961), Japanese footballer
Masaaki Nakagawa (中川 政昭) (1943–2005), Japanese photographer
Masaaki Nishimori (西森 正明) (born 1985), Japanese footballer
Masaaki Noiri (野杁 正明) (born 1993), Japanese kickboxer
Masaaki Ōkura (大倉 正章) (born 1961), Japanese voice actor
Masaaki Ōsawa (大沢 正明) (born 1946), Japanese politician
Masaaki Ōsumi (大隅 正秋) (born 1934), Japanese anime director
Masaaki Sakai (堺 正章) (born 1946), Japanese actor and singer
Masaaki Satake (佐竹 雅昭) (born 1965), Japanese karateka, kickboxer and mixed martial artist
Masaaki Sawanobori (澤登 正朗) (born 1970), Japanese footballer
Masaaki Shimakawa (島川 正明) (1912–1997), Japanese World War II flying ace
Masaaki Shirakawa (白川 方明) (born 1949), Japanese economist and banker
Masaaki Suzuki (鈴木 雅明) (born 1954), Japanese musician and conductor
Tachihara Masaaki (立原 正秋) (1926–1980), Japanese writer
Masaaki Taira ((平 将明) (born 1967), Japanese politician
Masaaki Takada (高田 昌明) (born 1973), Japanese footballer
Masaaki Tanaka (田中 正明) (1911–2006), Japanese writer
Masaaki Taniai (谷合 正明) (born 1973), Japanese politician
Masaaki Toma (當麻 政明) (born 1973), Japanese football referee
Masaaki Tsukada (塚田 正昭) (born 1938), Japanese voice actor
Masaaki Ueki (植木 政明) (born 1939), Japanese karateka
Masaaki Yaguchi (柳下 正明) (born 1979), Japanese guitarist and DJ
Masaaki Yamazaki (山崎 正昭) (born 1942), Japanese politician
Masaaki Yanagishita (柳下 正明) (born 1960), Japanese footballer and manager
Masaaki Yuasa (湯浅 政明) (born 1965), Japanese anime director, animator and screenwriter
