El Salvador competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's eighth appearance at the Olympics.
Mauritania competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. The country's participation at Athens marked its sixth appearance in the Summer Olympics since its debut in the 1984 Summer Olympics. The delegation included two track and field athletes, Youba Hmeida and Aminata Kamissoko, who were both selected by wildcards after both failed to meet either the "A" or "B" qualifying standards. Hmeida was selected as the flag bearer for the opening ceremony. Neither of the Mauritanians progressed beyond the heats.
El Salvador first competed in the Olympic Games at the 1968 Summer Olympics in Mexico City, Mexico. It has participated in every Games of the Olympiad since that time, excluding those held in 1976 and 1980, when the nation joined the American-led boycott in protest of the Soviet invasion of Afghanistan. The nation has never participated in the Olympic Winter Games and has not earned a medal at any Games of the Olympiad.
El Salvador participated in the 2010 Summer Youth Olympics in Singapore.
El Salvador competed at the 2012 Summer Olympics in London, United Kingdom, from 27 July to 12 August 2012. This was the nation's tenth appearance at the Olympics.
Mauritania competed at the 2012 Summer Olympics in London, which was held from 27 July to 12 August 2012. The country's participation at London marked its eighth appearance in the Summer Olympics since its debut in the 1984 Summer Olympics. The delegation included two track and field athletes, Jidou El Moctar and Aicha Fall, who were selected to the team by wildcard places, as the nation had no athletes that met either the "A" or "B" qualifying standards. Moctar was selected as flag bearer for the opening ceremony while a LOCOG Games Maker carried it for the closing ceremony. Neither of the two athletes progressed beyond the heats.
Rocio Rivarola Trappe is a female Paraguayan rower. Rivarola qualified for the women's single sculls at the 2004 Summer Olympics in Athens by achieving a fifth spot from FISA Latin American Qualification Regatta in San Salvador, El Salvador with an entry time of 8:25.81. Rowing in the D-Final, Rivarola paddled her stretch against five other women to overhaul an eight-minute barrier for a third-place effort and twenty-first overall in a lifetime best of 7:57.36. Building a historic milestone for Paraguay, Rivarola became the youngest and first ever female athlete as the nation's flag bearer in the opening ceremony.
El Salvador competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's eleventh appearance at the Summer Olympics, although it first competed in 1968.
During the Parade of Nations at the 2019 Pan American Games opening ceremony, on July 26, 2019, 41 athletes bearing the flags of their respective nations led their national delegations as they paraded into Estadio Nacional in the host city of Lima, Peru
María José Marenco is a Salvadoran former swimmer. She represented El Salvador at the age of 15 at the 1992 Summer Olympics in Barcelona in the 200 metre freestyle, 400 metre freestyle and 800 metre freestyle competing in the heats. She also acted as the flag bearer for the El Salvador team of 4 athletes during the opening ceremony.
