[3] Since the nation's official debut in 1920, Monegasque athletes have appeared in every edition of the Summer Olympic Games throughout the modern era, except for three occasions; Monaco did not attend the 1932 Summer Olympics in Los Angeles at the period of the worldwide Great Depression, failed to register any athletes at the 1956 Summer Olympics in Melbourne, and also joined the United States-led boycott when Moscow hosted the 1980 Summer Olympics.

[4] Monaco entered one male judoka into the Olympic tournament after International Judo Federation awarded them a tripartite invitation quota.

Monaco received an invitation from the Tripartite Commission to send a rower in the men's single sculls to the Tokyo regatta, signifying the nation's return to the sport for the first time since London 2012.

[5] Monaco entered one athlete into the table tennis competition for the first time at the Games.

Chinese-born Xiaoxin Yang scored a fourth-match final triumph to book one of the five available places in the women's singles at the 2021 ITTF World Qualification Tournament in Doha, Qatar.