Tonga competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This is the nation's ninth consecutive appearance at the Summer Olympics.
Niger 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 thirteenth appearance at the Summer Olympics. Since the nation made its debut in 1964, Nigerien athletes have participated in every edition of the Summer Olympic Games, except for two occasions, the 1976 Summer Olympics in Montreal, and the 1980 Summer Olympics in Moscow because of the African and the US-led boycotts, respectively.
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.
Ethiopia 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. The country's participation in Tokyo marked its fourteenth appearance at the Summer Olympics since its debut in 1956, having missed three occasions due to joining the African (1976), Soviet (1984), and North Korean (1988) boycotts. Ethiopia left Tokyo with a total of four medals, a decrease from its previous overall tally at the 2016 Summer Olympics in Rio de Janeiro and its lowest medal count since 1996.
Seychelles 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 appearance at the Summer Olympics, with the exception of the 1988 Summer Olympics in Seoul because of its partial support to the North Korean boycott.
Mozambique 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 tenth consecutive appearance at the Summer Olympics.
Jordan competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place during the summer of 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's 11th consecutive appearance at the Summer Olympics.
Papua New Guinea 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 tenth consecutive appearance at the Summer Olympics.
Gabon 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 eleventh appearance at the Summer Olympics.
Mali 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. Since the nation made its debut in 1964, Malian athletes have appeared in every edition of the Summer Olympic Games, with the exception of the 1976 Summer Olympics in Montreal because of the African boycott.
Haiti 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 seventeenth appearance at the Summer Olympics since its debut in 1900.
Honduras 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 twelfth appearance at the Summer Olympics.
Cape Verde 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, due to the COVID-19 pandemic. This was the nation's seventh appearance at the Olympics, since its debut in 1996.
Nepal, represented by the Nepal Olympic Committee (NOC), 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. Nepalese athletes have appeared in every Summer Olympics since 1964, with the exception of 1968.
The Federated States of Micronesia 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, due to the COVID-19 pandemic. This was the nation's sixth appearance at the Olympics, since its debut in 2000.
Turkmenistan 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, due to the COVID-19 pandemic. This was the nation's seventh consecutive appearance at the Summer Olympics in the post-Soviet era.
Sudan competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place during the summer of 2020, the Games were rescheduled for 23 July to 8 August 2021, due to the COVID-19 pandemic. This was the nation's twelfth appearance at the Summer Olympics.
Malawi competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from July 24th to August 9th 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's eleventh appearance at the Summer Olympics. Malawi did not attend the 1976 Summer Olympics in Montreal and the 1980 Summer Olympics in Moscow, because of its support to the African and United States-led boycott.
Palau competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games have been postponed to 23 July to 8 August 2021, due to the COVID-19 pandemic. This was the nation's sixth consecutive appearance at the Summer Olympics.
Sierra Leone competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to for 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021 due to the COVID-19 pandemic. It was the nation's twelfth appearance at the Summer Olympics, having appeared at all but two Games since its debut in 1968; Sierra Leone failed to register any athletes at the 1972 Summer Olympics in Munich and also joined the rest of the African nations to boycott the 1976 Summer Olympics in Montreal.
