Former Youth Olympian Daniela Macías accepted a spare berth from the injured Olympic champion Carolina Marín of Spain, as the next highest-ranked shuttler vying for qualification in the women's singles, based on the BWF World Race to Tokyo Rankings of June 15, 2021.

With the cancellation of the 2021 Pan American Qualification Tournament in Buenos Aires, Argentina, Leodan Pezo finished among the top five of the men's lightweight category to secure his place in the Peruvian squad based on the IOC's Boxing Task Force Rankings for the Americas.

Beijing 2008 Olympian María Luisa Doig claimed a spot in the women's épée by winning the final match at the Pan American Zonal Qualifier in San José, Costa Rica.

Rio 2016 Olympian Ariana Orrego received a spare berth from the women's apparatus events, as one of the twelve highest-ranked gymnasts, neither part of the team nor qualified directly through the all-around, at the 2019 World Championships in Stuttgart, Germany.

Rio 2016 Olympian Juan Postigos accepted a continental berth from the Americas as the nation's top-ranked judoka outside of direct qualifying position in the IJF World Ranking List of June 28, 2021.

[9] Peru qualified one boat in the men's single sculls for the Games by finishing fifth in the A-final and securing the second of five berths available at the 2021 FISA Americas Olympic Qualification Regatta in Rio de Janeiro, Brazil.

Marcos Rojas accepted a spare berth unused by the Tripartite Commission as the next highest-ranked weightlifter vying for qualification in the men's 61 kg category based on the IWF Absolute World Rankings.