During the Parade of Nations within the Tokyo 2020 Summer Olympics opening ceremony, which took place on 23 July 2021, athletes and officials from each participating team entered the Olympic Stadium preceded by their flag and placard bearer. Each flag bearer will have been chosen either by the team's National Olympic Committee or by the athletes themselves. For the first time, each team had the option to allow two flag bearers, one male and one female, in an effort to promote gender equality. These Olympics were postponed from 2020 due to the COVID-19 pandemic and due security measures some countries prevented their athletes to participate on event.

The team of the Olympic Federation of Ireland, which competed at the 2020 Summer Olympics in Tokyo, represented athletes from both the Republic of Ireland and those from Northern Ireland who choose it instead of the Great Britain and Northern Ireland team. 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. It was the team's twenty-second appearance at the Summer Olympics, having attended every edition since 1924 except the 1936 Summer Olympics in Germany.