Satō (Japanese: 佐藤, pronounced [saꜜtoː], English: SAH-toh) is the most common Japanese surname, often romanized as Sato, Satou or Satoh. A less common variant for a pen name is 佐島. Hiroshi Yoshida, a professor at Tohoku University, suggested in 2024 that if current trends continue all people in Japan will have the surname Sato by 2531, as married couples are expected to use the same surname. Notable people with the surname Satō. Ai Satō (さとう あい, born 1955), Japanese actress and voice actress. Aiko Sato (actress) (佐藤 藍子, born 1977), Japanese actress.
https://en.wikipedia.org/wiki/Sat%C5%8D