KuÃÂiniÃÂ (), often anglicized to Kucinich ( ) is a Croatian family name. Notable persons with that surname include:
- Dennis Kucinich (born 1946), American politician
- Elizabeth Kucinich (; born 1977), director of public affairs for the Physicians Committee for Responsible Medicine, wife of Dennis
- Jackie Kucinich (born 1981), American reporter, daughter of Dennis