Masato

• Masato , Japanese former welterweight kickboxer, won K-1 WORLD MAX kickboxing tournament in 2003, 2008
• Masato Amada, Japanese voice actor
• Masato Furuoya, Japanese actor
• Masato Hagiwara, Japanese actor
• Masato Harada, Japanese film director and actor
• Masato Hatanaka, Japanese musician
• Masato Hayakawa, Japanese singer and musician
• Masato Ichishiki, author of the SD Gundam comics
• Masato Ishioka, Japanese film director and screenwriter
• Masato Jinbo, Japanese anime director and screenwriter
• Masato Kato, Japanese game developer and scenario writer
• Masato Kawabata, professional drifting driver
• Masato Kitera, Japanese diplomat
• Masato Kurogi, Japanese football player for Cerezo Osaka
• Masato Mihara, Japanese judoka
• Masato Morishige, Japanese football player for F.C. Tokyo
• Masato Nakamura, member of the band Dreams Come True
• Masato Nakamura, Japanese baseball player
• Masato Nagai a Japanese anime singer
• Masato Osugi, Japanese footballer
• Masato Saito, Japanese footballer
• Masato Sakai, Japanese actor
• Masato Tachibana, Japanese weightlifter
• Masato Takaki, Japanese sailor
• Masato Watanabe, Japanese baseball player
• Masato Yokoyama, perpetrator of the Sarin gas attack on the Tokyo subway
• Masato Yoshii, Japanese professional baseball player

  Fictional characters

• Masato, known in English as Max, a character in Pokémon and Ash & Pikachu
• Masato Inohara, a character in Little Busters!
• Masato Jin from Tokumei Sentai Go-Busters
• Masato Kusaka of Kamen Rider 555
• Masato Mishima of Kamen Rider Kabuto
• Masato Sanjouin from Sailor Moon
• Masato Wakamatsu of Miyuki
• Masato Yamanobe, a character in the manga Phoenix
• Masato Hijirikawa, a character from the Uta no Prince-sama series.
• Masato Kageura, a character in the manga World Trigger.