| Carlos Domingos Massoni | |
| Height Ft: | 5 |
| Height In: | 11 |
| Weight Lb: | 180 |
| Birth Date: | 4 January 1939 |
| Birth Place: | São Paulo, Brazil |
| Career Position: | Shooting guard |
Carlos "Mosquito" Domingos Massoni (born 4 January 1939), commonly known as Mosquito Massoni, is a Brazilian former professional basketball player.
Massoni played with the senior Brazilian national team at the 1963 FIBA World Cup, where he won a gold medal. He also won a silver medal at the 1970 FIBA World Cup. In addition, he also won bronze medals at the 1960 Summer Olympic Games, the 1964 Summer Olympic Games, and the 1967 FIBA World Cup.