| Marcela Lopez | |
| Nickname: | Ma or Ce |
| Birth Date: | 13 October 1982 |
| Birth Place: | Sao Paulo |
| Height: | 158 cm |
| Discipline: | AER |
| Headcoach: | Luciana July |
| Retired: | 2011 |
Marcela Lopez (born October 13, 1982) is a Brazilian aerobic gymnast who finished 1st in the Women's Individual event at the 10th Aerobic Gymnastics World Championships held in Ulm