[2] But finally these 7 athletes, based on Panamerican rankings, are selected: Nazareno Sassia (SP), Pablo Zaffaroni (PV), Gustavo Agustín Osorio (JT), Pedro Garrido (400 m hs), Julio Nobile (HT), Luciano Méndez (TJ) and Lázaro Bonora (DT), only boys.

[9] Argentina entered three boats based on its performance at the 2018 World Qualification Event.

They later qualified two athletes in BMX freestyle based on its performance at the 2018 Urban Cycling World Championship.

[17] 1 team of 10 athletes As hosts, Argentina was given a quota to compete in the men's and women's events.

[23] Based on their performance at the 2018 Youth A World Championship Argentina can choose to send Martina Armanazqui or use its host quota.

[25][26] 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.

Argentina later qualified one sport shooter in boys' 10m air rifle based on its performance at the American Qualification Tournament.

As hosts, Argentina is allowed to send the maximum quota of four boys' and four girls.