Ishizaka (written: lit. "stone hill") is a Japanese surname. Notable people with the surname include:
Danjulo Ishizaka, German-Japanese cellist, brother of Kimiko Douglass-Ishizaka , Japanese music industry executive , Japanese scientist , Japanese actor , Japanese artistic gymnast , Japanese businessman , Japanese scientist , Japanese politician , Japanese writer , Japanese beach volleyball player
See also Kimiko Douglass-Ishizaka (born 1976), German-Japanese classical pianist, weightlifter and powerlifter