Bonačić () – also occurring in the diaspora variant Bonacic – is a Croatian surname. Notable people with the surname include:

Duje Bonačić (1929–2020), Croatian rower Filip Bonačić (191–1991), Croatian water polo player John Bonacic (born 1942), American politician Luka Bonačić (born 1955), Croatian football coach Mirko Bonačić (1903–1989), Croatian footballer Ozren Bonačić (born 1942), Croatian water polo player

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