Chmielnicki may refer to:
- Bohdan Khmelnytsky ( – 1657), Ukrainian head of state and military commander
- Khmelnytsky Uprising, a Cossack rebellion within the Polish-Lithuanian Commonwealth in 1648–1657 led by Bohdan Khmelnytsky
- Khmelnytskyi, Ukraine, a city in central Ukraine
- Khmelnytsky (disambiguation)