| William Martin | |
| Fullname: | Charles William Martin |
| Birth Date: | 25 October 1828 |
| Birth Place: | Rouen, Kingdom of France |
| Death Place: | Paris, France |
| Classes: | 0.5 to 1 ton 3 to 10 ton Open class |
| Club: | CVP Yacht Club de France |
| Show-Medals: | yes |
Charles William Martin (25 October 1828 – 25 February 1905) was a French sailor who represented his country at the 1900 Summer Olympics in Meulan, France. With Jacques Baudrier as helmsman and fellow crewmember Félix Marcotte, Jules Valton and Jean Le Bret Martin took the 2nd place in first race of the .5 to 1 ton and finished 3rd in the second race.[1]