| Charles Windeyer | |
| Nationality: | British |
| Order: | 1st Mayor of Sydney |
| Term Start: | 1842 |
| Term End: | 1842 |
| Successor: | John Hosking |
| Birth Date: | 1 July 1780 |
| Birth Place: | Staffordshire |
| Death Place: | Newtown, New South Wales, Australia |
| Spouse: | Ann Mary Rudd |
Charles Windeyer (1 July 1780 – 30 January 1855) was an Australian magistrate who held a variety of public positions and was later appointed by Governor George Gipps as the first Mayor of Sydney. He was the father of barrister and politician Richard Windeyer and grandfather of politician and judge William Charles Windeyer.