| Martina Cavallero | |
| Birth Date: | 7 May 1990 |
| Birth Place: | Morón, Argentina |
| Height: | 1.63 m |
| Weight: | 58 kg |
| Position: | Forward |
| Currentclub: | Mannheimer HC |
| Youthclubs1: | Los Matreros |
| Years1: | 2005–2018 |
| Clubs1: | Hurling |
| Years2: | 2018– |
| Clubs2: | Mannheimer HC |
| Nationalyears1: | 2009 |
| Nationalteam1: | Argentina U21 |
| Nationalyears2: | 2010–2018 |
| Nationalteam2: | Argentina |
| Nationalcaps2: | 202 |
| Show-Medals: | no |
Martina Cavallero (born 7 May 1990) is an Argentine field hockey player. At the 2012 Summer Olympics, she competed for the Argentina national team[1] where the team achieved the silver medal. Martina also won three Champions Trophy, the World League 2014-15, the bronze medal at the 2014 World Cup and two Pan American Cups.[2] She was also part of the 2016 Olympic team.[3]