Masahiko

• Masahiko Amakasu, an officer in the Imperial Japanese Army imprisoned for his involvement in the Amakasu Incident
• Masahiko Arimachi, a Japanese singer and former actor
• Masahiko Fujiwara, a Japanese mathematician best known as an essayist
• Masahiko Harada, a Japanese ski jumper
• Masahiko Ichikawa, a Japanese footballer
• Masahiko Inoha, a Japanese football player
• Masahiko Kōmura, a Japanese politician of the Liberal Democratic Party
• Masahiko Katsuya, a Japanese columnist, photographer, and pundit
• Masahiko Kimura, a Japanese judoka
• Masahiko Kimura, a bonsai master
• Masahiko Kobe, a chef specializing in Italian cuisine
• Masahiko Kondō, or Matchy is a Japanese singer, lyricist and actor
• Masahiko Kumagai, a Japanese former football player
• Masahiko Minami, a Japanese anime producer and president of Bones
• Masahiko Minami, a linguistics professor at San Francisco State University
• Masahiko Morifuku, Japanese baseball player
• Masahiko Morita, a Japanese Magic: The Gathering player
• Masahiko Nagasawa, a Japanese film director
• Masahiko Nakagawa, a former Japanese football player
• Masahiko Nakahira, a manga artist from Kōchi City, Japan
• Masahiko Nishimura, a Japanese theatre and film actor
• Masahiko Nomi, a Japanese journalist who advocated Takeji Furukawa's idea
• Masahiko Shibayama, a Japanese politician of the Liberal Democratic Party
• Masahiko Shimada, a Japanese writer
• Masahiko Suzuki, Japanese kickboxer
• Masahiko Takeshita, the head of the domestic affairs section of the Military Affairs Bureau of the Imperial Japanese Army during World War II
• Masahiko Tanaka, Japanese voice actor
• Masahiko Togashi, Japanese jazz percussionist and composer
• Masahiko Toyoyama, Japanese rugby union player
• Masahiko Tsugawa, a Japanese actor and director
• Masahiko Urano, Japanese shogi player
• Masahiko Yamada, a Japanese politician of the Democratic Party of Japan
• Masahiko Yamamoto, Japanese speed skater
• Yuuki Masahiko, a Japanese guitarist