| Harry Jefferson | |
| Fullname: | Harry Wyndham Jefferson |
| Nationality: | British |
| Birth Date: | 9 March 1849 |
| Death Place: | Alcombe, Somerset, England |
| Medaltemplates: | |
| Show-Medals: | yes |
Harry Jefferson (9 March 1849 – 23 June 1918) was a British sailor who competed in the 1900 Summer Olympics in Paris, France. Jefferson took the gold in the second race of the 3 to 10 ton.
In 1885, Jefferson set up the stock-jobbing firm Wedd Jefferson in partnership with George Wedd.[1]