Kayama (written: 加山, 香山, 嘉弥真) is a Japanese surname. Notable people with the surname include:

• Shinsuke Kayama (香山 進介, born 1959), Japanese swimmer
• Shinya Kayama (嘉弥真 新也, born 1989), Japanese professional baseball player
• Toshio Kayama (加山 俊夫, born 1945), Japanese mayor
• Yukihiro Kayama (加山 幸浩, born 1939), Japanese businessman
• Yūzō Kayama (加山 雄三, born 1937), Japanese musician and actor

Fictional characters

• Licca Kayama (香山 リカ), a character in the anime series Super Doll Licca-chan
• Nemuri Kayama, a character in My Hero Academia

See also

• Kayama Station, a railway station in Odawara, Kanagawa Prefecture, Japan