Vonck is a Dutch surname. Vonk means "spark" and refers to the work of a Smith.[1] The surname can refer to several people:
- Elias Vonck (1605–1652), Dutch Golden Age painter
- Jan Vonck (1631–1664), Dutch Golden Age painter
- Jan Frans Vonck (1743–1792), lawyer and one of the leaders of the Brabant Revolution
- Rico Vonck (born 1987), Dutch darts player