Ishikawa is a Japanese surname. Notable people with the surname include:
Arisa Ishikawa or Sumire (1987–2009), Japanese fashion model
Bun'yō Ishikawa (born 1938), Japanese photographer and photojournalist
Chiaki Ishikawa (born 1969), Japanese musician
Chu Ishikawa (born 1966), Japanese composer and musician
Ishikawa Goemon (died 1594), Japanese outlaw hero
Hideo Ishikawa (born 1969), Japanese voice actor
Jun Ishikawa (author) (1899–1987), Japanese author
Kaoru Ishikawa (1915–1989), Japanese university professor, developer of the Ishikawa diagram
Kasumi Ishikawa (born 1993), female Japanese table tennis player
Koji Ishikawa (artist) (born 1968), Japanese contemporary artist
Koji Ishikawa (illustrator) (born 1968), Japanese children's book author and illustrator
Melody Miyuki Ishikawa (born 1982), Japanese-American pop singer and television host
Miki Ishikawa (born 1991), Japanese-American actress and singer
Momoko Ishikawa, a voice actress for Sky Girls
Naohiro Ishikawa (born 1981), Japanese football player
Rika Ishikawa (born 1985), Japanese idol, former member of Morning Musume
Ryo Ishikawa (born 1991), Japanese professional golf player
Takuboku Ishikawa, Japanese poet
Travis Ishikawa (born 1983), American professional baseball first baseman
Sayuri Ishikawa (born 1958), Japanese enka singer
Shoko Ishikawa(born 1990), Japanese figure skater
Yui Ishikawa (born 1989), Japanese voice actress
Fictional characters:
Keiko Ishikawa, a character in the American science fiction television series Star Trek: The Next Generation
Ishikawa (Ghost in the Shell), a character in the Japanese seinen manga Ghost in the Shell
Goemon Ishikawa XIII, a character in the Japanese manga series Lupin III
