The rugby sevens tournament at the 2018 Summer Youth Olympics was held from 13 to 15 October in Buenos Aires, Argentina.

Each National Olympic Committee (NOC) is limited to participation in 1 team sports (Futsal, Beach handball, Field Hockey, and Rugby Sevens) per each gender with the exception of the host country who can enter one team per sport.

Also at rugby sevens each NOC can enter a maximum of 1 team of 12 athletes per both genders.

To be eligible to participate in the Youth Olympics, athletes must have been born between 1 January 2000 and 31 December 2001.

[1] As hosts, Argentina has the right to directly qualify 1 team per both genders on account of Sudamérica Rugby quota.