| Ariel Quassi | |
| Fullname: | Marcelo Ariel Quassi |
| Sport: | Paralympic swimming |
| Disability: | Spinal atrophy |
| Disability Class: | S5, SB4 |
| Birth Date: | 9 November 1982 |
| Birth Place: | Avellaneda, Argentina |
| Retired: | 2019 |
| Height: | 160cm |
| Weight: | 58kg |
Marcelo Ariel Quassi (born 9 November 1982) is a retired Argentine Paralympic swimmer who competed in international level events. He has competed at the Paralympic Games four times and is a four-time Parapan American Games medalist.[1] [2] [3]