Aizawa is a Japanese surname. Alternate writings include 相澤, 藍澤 and 藍沢. Notable people with the surname include:Chiyo Aizawa , Japanese woman who killed her father Haruka Aizawa , Japanese manga artist Hiroyasu Aizawa , retired Japanese ski jumper Hitomi Aizawa , Japanese gravure idol and race queen Keiko Aizawa , Japanese voice actress Kiyoharu Aizawa , Japanese engineer Machiko Aizawa , Japanese badminton player Mai Aizawa , Japanese voice actress and singer Mai Aizawa (footballer) , Japanese women's footballer Rina Aizawa , Japanese actress and gravure idol Saburo Aizawa , Japanese soldier who assassinated Tetsuzan Nagata Sayo Aizawa , Japanese model and television personality Shiloh Aizawa , Japanese composer, creator Tsubasa Aizawa , Japanese baseball player Yasushi Aizawa , Japanese scholar, author of the New Theses, promoter of Japanese national essentialism