Babij, Babiy or Babii () is a Ukrainian surname. Notable people with the surname include:
Ivan Babii (1893–1934), Ukrainian educator and activist Oleh Babiy (1990–2023), Ukrainian military officer Oleksandr Babiy (born 1968), retired Ukrainian football player Olga Babiy (Kalinina; born 1989), Ukrainian chess player Sorin Babii (born 1963), retired Romanian pistol shooter