Masashi is a Japanese given name, usually used for male.
Masashi Asaki (朝基 まさし; born 1970), manga artist
Masashi Chikaishi (近石 まさし; born 1961), manga artist
Masashi Ebara (江原 正士; born 1953), Japanese voice actor
Masashi Eriguchi (江里口 匡史; born 1988), sprinter
Masashi Fujimoto (藤本 政志; born 1963), Japanese entertainer who lives in London
Masashi Fujiwara (藤原 正司; born 1946), politician
Masashi Hamauzu (浜渦 正志; born 1971), composer
Masashi Kishimoto (岸本 斉史; born 1974), manga artist
Masashi Kato (加藤 [Katō] 真志; born 1970), freestyle swimmer
Masashi Kawakami (川上 雅史; born 1972), boxer
Masashi Kumada (くまだ まさし, 熊田 雅志; born 1973), comedian
Masashi Kubota (久保田 将至; born 1981), actor
Masashi Mito (水戸 将史; born 1962), politician
Masashi Miura (三浦 雅士; born 1946), literary critic
Masashi Miyamoto (雅史; born 1957), investor
Masashi Motoyama (本山 雅志; born 1979), footballer
Masashi Nakayama (中山 雅史; born 1967), footballer
Masashi Nezu (ねず まさし, 禰津正志; 1908 - 1986), historian and archeolog
Masashi Oiso (大礒[Ōiso] 正嗣), Magic: The Gathering player
Masashi Oguro (大黒[Ōguro] 将志; born 1980), footballer
Masashi Ozaki (尾崎 将司; born 1947), golfer
Masashi Sada (さだ まさし, 佐田 雅志; born 1952)
Masashi Seki (関 雅至; born 1983), soccer player
Masashi Shimada (島田 まさし, original name 藤田 正 [Fujita Masashi]; born 1966), comedian
Masashi Sugawara (菅原 正志; born 1962), Japanese voice actor
Masashi Sugimoto (杉本 正志; born 1967), professional baseballist
Masashi Tanaka (田中 政志; born 1962), manga artist
Masashi Tashiro (田代 まさし, 田代 政; born 1956), television performer
Masashi Ueda (植田 まさし, original name 植松 正通 [Uematsu Masamichi]; born 1947), manga artist
Masashi Ueda (conductor) (上田 仁; 1904 - 1966), Japanese conductor, bassoonist
Masashi Wikipedia (Text) CC BY-SA