Bonin may refer to:
- People
- Adolf von Bonin (1803–1872), Prussian Fieldmarshal
- Arturo Bonin (1943), Argentinian actor
- Bogislaw von Bonin (1908–1980), German officer and journalist
- Charlotte Bonin, a professional Italian triathlete
- Eduard von Bonin (1793–1865), Prussian Minister of War
- Hubertus von Bonin (1911–1943), German World War II fighter pilot
- William Bonin (1947–1996), American serial murderer
- Places
- Bonin, Masovian Voivodeship (east-central Poland)
- Bonin, Choszczno County in West Pomeranian Voivodeship (north-west Poland)
- Bonin, Drawsko County in West Pomeranian Voivodeship (north-west Poland)
- Bonin, Koszalin County in West Pomeranian Voivodeship (north-west Poland)
- Bonin, Łobez County in West Pomeranian Voivodeship (north-west Poland)
- Bonin Islands, Japan
- Bonin, part of the Jeżyce district of Poznań (western Poland)
- Other
- Bonin', slang for sexual intercourse