Grzywacz (Polish pronunciation: ) is a Polish surname. Notable people with the surname include:
- Maciek Grzywacz, Polish jazz and classical pianist
- Szlama Grzywacz (1909–1944), Polish member of the French Resistance
- Zbylut Grzywacz (1939–2004), Polish painter, sculptor and graphic artist
See also
- Grzywacz, West Pomeranian Voivodeship, village in Poland
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