The 2016 Olympic Wrestling Pan American Qualification Tournament was the first regional qualifying tournament for the 2016 Olympics.
The 2016 Olympic Wrestling Asian Qualification Tournament was the second regional qualifying tournament for the 2016 Summer Olympics The competition was held from 18 to 20 March 2016 in Astana, Kazakhstan.
The 2016 Olympic Wrestling African & Oceania Qualification Tournament was the third regional qualifying tournament for the 2016 Olympics.
The 2016 Olympic Wrestling European Qualification Tournament was the fourth regional qualifying tournament for the 2016 Olympics. It was held between 15–17 April 2016 in Zrenjanin, Serbia.
The 2016 World Wrestling Olympic Qualification Tournament 2 was the second of two worldwide qualification tournaments for the 2016 Olympics. Competitors at this tournament failed to qualify for the Olympics at the 2015 World Wrestling Championships, at their respective regional qualifier, or at the 2016 World Wrestling Olympic Qualification Tournament 1. The top two competitors in each weight class qualified.
The 2016 World Wrestling Olympic Qualification Tournament 1 was the first of two worldwide qualification tournaments for the 2016 Olympics. Competitors at this tournament failed to qualify for the Olympics at the 2015 World Wrestling Championships or at their respective regional qualifier. The top three competitors in each weight class for the men and top two competitors for the women qualified.

Turkey 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. Since the nation's official debut in 1908, Turkish athletes have appeared in every edition of the Summer Olympic Games, except the 1920 Summer Olympics in Antwerp, the 1932 Summer Olympics in Los Angeles at the period of worldwide Great Depression, and the 1980 Summer Olympics in Moscow because of its support for the United States-led boycott.

Finland 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. Finnish athletes have appeared in every edition of the Summer Olympic Games since the nation's official debut in 1908. Finland left the 2020 Summer Olympics with two bronze medals; its last Summer Olympic gold medal was won in the 2008 Games.

Ukraine 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 worldwide COVID-19 pandemic. It was the nation's seventh consecutive appearance at the Summer Olympics in the post-Soviet era with its smallest representation ever.

Bulgaria 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. Bulgarian athletes have appeared in every edition of the Summer Olympics since 1924, except for three occasions: the 1948 Summer Olympics in London, and the 1932 and 1984 Summer Olympics in Los Angeles because of Bulgaria's actions in World War II and the worldwide Great Depression and Soviet boycott, respectively.

Mongolia 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'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.

The 2020 Olympic Wrestling Pan American Qualification Tournament was the first regional qualifying tournament for the 2020 Summer Olympics. The event was held from 13 to 15 March 2020, in Ottawa, Canada.

Moldova, officially the Republic of Moldova, 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.

Azerbaijan 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.

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.

Morten Thoresen is a Norwegian Greco-Roman wrestler. He is a European champion and won the gold medal in the men's Greco-Roman 67 kg event at the 2020 European Championships. He is also a European U23 Championships bronze medallist. Thoresen hails from Bodø Municipality.

The 2021 European Wrestling Olympic Qualification Tournament is the second regional qualifying tournament for the 2020 Summer Olympics. The event was held from 18 to 21 March 2021, in BOK Sports Hall, Budapest, Hungary.

The 2021 African & Oceania Wrestling Olympic Qualification Tournament was the third regional qualifying tournament for the 2020 Summer Olympics. The event was held from 2 to 4 April 2021, in Hammamet, Tunisia.

The 2021 Asian Wrestling Olympic Qualification Tournament was the fourth and final regional qualifying tournament for the 2020 Summer Olympics. The event was held from 9 to 11 April 2021, in Almaty, Kazakhstan. The 2021 Asian Wrestling Championships were held at the same venue.

Julián Stiven Horta Acevedo is a Colombian of Portuguese descent Greco-Roman wrestler. He won the 2020 Pan American Wrestling Olympic Qualification Tournament in the 67 kg category, thus qualifying for the 2020 Summer Olympics in Tokyo, Japan. He competed in the 67 kg event.