| Marshall Pickney Wilder | |
| Birth Date: | September 22, 1798 |
| Death Date: | December 16, 1886 (aged 88) |
| Nationality: | American |
| Term Start: | 1850 |
| Term End: | 1850 |
| Predecessor: | Joseph M. Bell |
| Successor: | Henry Wilson |
| Term Start4: | 1849 |
| Term End4: | 1849 |
| Office5: | Member of the Massachusetts House of Representatives |
| Signature: | Marshall Pinckney Wilder (politician) signature.png |
Marshall Pickney Wilder (September 22, 1798 – December 16, 1886) was a Massachusetts merchant, amateur horticulturalist, and politician who served in the Massachusetts House of Representatives, on the Massachusetts Governor's Council as a member and President of, the Massachusetts Senate.
As a pomologist he was founder (1848) and longtime president of the American Pomological Society.