San Marino competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's fifteenth appearance at the Summer Olympics.
Armenia competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's seventh consecutive appearance at the Summer Olympics in the post-Soviet era.
North Macedonia competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's seventh consecutive appearance at the Summer Olympics and the first under the country's new name. North Macedonia won their first ever silver medal, won by Dejan Georgievski in the Men's +80 kg event in Taekwondo, with the nation having previously only received a bronze medal.
Guam competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's ninth consecutive appearance at the Summer Olympics.
Guinea-Bissau competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's seventh consecutive appearance at the Summer Olympics.
Venezuela competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's twentieth consecutive appearance at the Summer Olympics. Venezuela failed to win a single Olympic medal for the first time since the 2000 Summer Olympics. Raiber Rodríguez fell short of his bronze medal match in the Wrestling at the 2024 Summer Olympics – Men's Greco-Roman 60 kg, losing out to Ri Se-ung of North Korea.
Honduras competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Honduran athletes have appeared in every edition of the Summer Olympic Games, except for two occasions: Munich 1972 and Moscow 1980 as part of the US-led boycott. It will be the nation's thirteenth consecutive appearance at the Summer Olympics.
Slovakia competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's eighth consecutive appearance at the Summer Olympics after gaining its independence from the former Czechoslovakia.
Armenia competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's eighth consecutive appearance at the Summer Olympics in the post-Soviet era.
Bahrain competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's eleventh consecutive appearance at the Summer Olympics.
Azerbaijan competed at the 2024 Summer Olympics in France, scheduled to take place from 26 July to 11 August 2024. It will be the nation's eighth consecutive appearance at the Summer Olympics in the post-Soviet era.
Georgia competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's eighth consecutive appearance at the Summer Olympics in the post-Soviet era.
Moldova, officially the Republic of Moldova, competed at the 2024 Summer Olympics in Paris, France, from 26 July to 11 August 2024. It was the nation's eighth consecutive appearance at the Summer Olympics in the post-Soviet era.
Albania competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024, represented by the Albanian National Olympic Committee (KOKSH). It signified the nation's tenth appearance at the summer Olympics, since the official debut in 1972, except for 1976, 1980 due to the US led boycott, 1984 due to USSR led boycott, 1988, the nation's return for the Olympics in 1992.
Mongolia competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Since the nation's debut in 1964, Mongolian athletes have appeared in every edition of the Summer Olympic Games, with the exception of the 1984 Summer Olympics in Los Angeles, because of its support of the Soviet boycott.
North Korea competed as the Democratic People's Republic of Korea at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. North Korea's eleventh Summer Olympics appearance marked the official return of the nation to the sporting event after withdrawing from the games in 2020 due to the COVID-19 pandemic.
Kyrgyzstan competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's eighth consecutive appearance at the Summer Olympics in the post-Soviet era.
North Macedonia competed at the 2024 Summer Olympics in Paris, France, from 26 July to 11 August 2024. It was the nation's eighth consecutive appearance at the Summer Olympics; six of the editions competed under the name of Macedonia or Republic of Macedonia, and it will be the second Olympic Games at which the country competes under the new name.
Guam competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024.
Guinea-Bissau competed at the 2024 Summer Olympics in Paris, France, from 26 July to 11 August 2024.
