| Ding Schoonmaker | |
| Full Name: | James Martinus Schoonmaker |
| Birth Date: | June 10, 1933 |
| Birth Place: | Pittsburgh, Pennsylvania |
| Death Date: | January 19, 2021 (aged 90) |
| Classes: | Laser, Finn, Thistle, Flying Dutchman, Star, and Soling |
| Medaltemplates: | |
| Show-Medals: | yes |
James Martinus "Ding" Schoonmaker (June 10, 1933 – January 19, 2021) was an American sailor. He won the 1975 Star World Championship together with Jerry Ford. He also had several other podiums from the Star World Championship and Soling World Championship. Schoonmaker was inducted into the National Sailing Hall of Fame in 2018.[1] Schoonmaker died on January 19, 2021 at the age of 90.[2]