Oussama Mellouli, a renowned athlete, resides in Los Angeles, CA, USA. Fluent in Arabic, English, French, and Italian, Mellouli has a rich educational background. He studied Computer Engineering and Computer Science at the University of Southern California. His journey in swimming began at age five in La Marsa, Tunisia, encouraged by his mother.

| Season | Event | Rank |
|---|---|---|
| 2021 | Men's 10km | 20 |
| 2016 | Men's 10km | 12 |
| 2016 | Men's 1500m Freestyle | 21 |
| 2012 | Men's 10km | G Gold |
| 2012 | Men's 1500m Freestyle | B Bronze |
| 2008 | Men's 1500m Freestyle | G Gold |
| 2008 | Men 400m Freestyle | 5 |
| 2008 | Men 200m Freestyle | 19 |
| 2004 | 5 | |
| 2004 | Men 200m Individual Medley | 9 |
| 2004 | Men's 1500m Freestyle | 14 |
| 2000 | Heats |
Mellouli's notable achievements include winning gold in the 1500m freestyle at the 2008 Beijing Olympics and gold in the 10km open water swimming at the 2012 London Olympics. He idolises US boxer Muhammad Ali and has faced several injuries throughout his career, including shoulder injuries and a slipped disc.
Mellouli lives by the philosophy that challenges are essential for growth. He was inducted into the Hall of Fame at the University of Southern California in 2018. He served as Tunisia's flag bearer at the 2016 Rio Olympics and received numerous awards, including FINA's Male Open Water Swimmer of the Year in 2012.
Mellouli has represented Tunisia in both swimming and open water swimming across five consecutive Olympic Games from 2000 to 2016. He became the first Tunisian athlete to win two Olympic gold medals and to compete in five editions of the Games. His gold medal in the 10km open water event at the 2012 London Olympics made him the first athlete to win gold in both pool and open water swimming.
Mellouli aims to compete at the 2024 Olympic Games in Paris. He believes he paved the way for swimmers transitioning from pool to open water swimming after his success at the 2012 Olympics. He is proud to have challenged perceptions about this transition.
Mellouli has pursued further education, studying for a master's degree in higher education administration at USC and another in business administration and finance at Essex Business School. In November 2006, he tested positive for Adderall, leading to an 18-month suspension. Mellouli claimed he used it to focus on a university assignment deadline.
Mellouli's journey is marked by significant achievements and challenges. His dedication to swimming continues as he prepares for future competitions.
Oussama Mellouli, a renowned athlete, resides in Los Angeles, CA, USA. Fluent in Arabic, English, French, and Italian, Mellouli has a rich educational background. He studied Computer Engineering and Computer Science at the University of Southern California. His journey in swimming began at age five in La Marsa, Tunisia, encouraged by his mother.