Bonavia or Bonavía is an Italian surname. Notable people with the surname include:
- Carlo Bonavia (d. 1788), Italian painter
- Emanuel Bonavia (1826-1908), physician and naturalist in British India
- Ferruccio Bonavia (1877-1950), Italian-English writer on music and composer
- Giuseppe Bonavia (1821–1885), Maltese draughtsman and architect
- Kevin Bonavia (born 1977 or 1978), British politician
- Maria Luisa Carranque y Bonavía, Spanish noblewoman and painter
- Santiago Bonavía (1700–1760), Italian architect and painter
- Victor Bonavia (1893–1948), Maltese cricketer, physician and British Army officer
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