| Martina Grimaldi | |
| Nationality: | Italian |
| Sport: | Swimming |
| Club: | G.S. Fiamme Oro |
| Birth Date: | 1988 9, df=yes |
| Birth Place: | Bologna, Italy |
| Weight: | 65kg (143lb) |
| Country: |  Italy |
Martina Grimaldi (born 28 September 1988) is an Italian distance swimmer. She was born in Bologna.[1] At the 2012 Summer Olympics, she competed in the Women's marathon 10 kilometre, winning the bronze medal.
Grimaldi is an athlete of the Gruppo Sportivo Fiamme Oro.[2]