Argentina competed at the 2018 Summer Youth Olympics in Buenos Aires, Argentina from 6 October to 18 October 2018, as host nation.
Medals awarded to participants of mixed-NOC teams are represented in italics. These medals are not counted towards the individual NOC medal tally.
|width="30%" align=left valign=top|
Argentina qualified two athletes based on host nation.
As hosts, Argentina was given four athlete quotas (2 boys and 2 girls) to compete in athletics.
But finally these 7 athletes, based on Panamerican rankings, are selected: Nazareno Sassia (SP), Pablo Zaffaroni (PV), Gustavo AgustÃÂn Osorio (JT), Pedro Garrido (400 m hs), Julio Nobile (HT), Luciano Méndez (TJ) and Lázaro Bonora (DT), only boys.
As hosts, Argentina was given a spot to compete in the boys' and girls' singles events. Argentina only sent 1 boy.
As hosts, Argentina is given a spot to compete in both the boys' and girls' tournaments.
As hosts, Argentina were given a spot to compete in the boys' and girls' tournament.
As hosts, Argentina was given a spot to compete in the boys' and girls' tournaments.
As hosts, Argentina was given quotas to compete in two boys' and one girls' events.
Argentina entered three boats based on its performance at the 2018 World Qualification Event.
As hosts, Argentina was given spots to compete in the boys' and girls' combined team events and in the mixed BMX racing team event. However they declined to compete in BMX racing. They later qualified two athletes in BMX freestyle based on its performance at the 2018 Urban Cycling World Championship.
As hosts, Argentina was given two quotas to compete in dancesport.
As hosts, Argentina was given a quota to compete.
As hosts, Argentina was given quotas to compete in all weapons.
As hosts, Argentina was given a spot to compete in both tournaments.
As hosts, Argentina can compete in either the boys' or girls' tournament.
1 team of 10 athletes
As hosts, Argentina was given a quota to compete in the men's and women's events.
As hosts, Argentina was given a quota to compete in the boys' and girls' events.
As hosts, Argentina was given a quota to compete in the girls' event.
As hosts, Argentina was given a quota to compete in either the boys' or girls' event.
As hosts, Argentina was given a quota to compete in two events.
As hosts, Argentina was given a quota to compete in four events.
As hosts, Argentina has been given a spot to compete in the boys' and girls' events. Based on their performance at the 2018 Youth A World Championship Argentina can choose to send Martina Armanazqui or use its host quota.
As hosts, Argentina was given a quota to compete in all events.
Argentina qualified a boat based on its performance at the 2017 World Junior Rowing Championships. They also qualified one boat in girls' single sculls based on their performance at the American Qualification Regatta.
<small>Qualification Legend: FA=Final A (medal); FB=Final B (non-medal); FC=Final C (non-medal); SA/B=Semifinals A/B; SC/D=Semifinals C/D; QF=Quarterfinals;</small>
As hosts, Argentina was given a quota to compete in the boys' tournament.
As hosts, Argentina qualified in every event.
As hosts, Argentina was given two quotas to compete in shooting, however they declined to compete in boys' 10m air pistol. Argentina later qualified one sport shooter in boys' 10m air rifle based on its performance at the American Qualification Tournament.
As hosts, Argentina was given a quota to compete in the boys' and girls' events. Argentina only sent 1 girl.
As hosts, Argentina is allowed to send the maximum quota of four boys' and four girls.
As hosts, Argentina was given two quotas to compete in table tennis. Argentina only sent 1 boy.
As hosts, Argentina is allowed to send the maximum quota of three athletes.
As hosts, Argentina is given a quota to compete in the boys' and girls' singles.
As hosts, Argentina was given a quota to compete in the boys' and girls' races but only one female athlete competed.
As hosts, Argentina is given two quotas to compete.
As hosts, Argentina is given three quotas to compete.