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.

[1] This was the nation's twelfth appearance at the Summer Olympics.

[2] Sudan received an invitation from the Tripartite Commission and the International Judo Federation to send Mohamed Abdalarasool in the men's lightweight category (73 kg).

[3] Sudan received an invitation from the Tripartite Commission and World Rowing to send a rower in the women's single sculls to the Tokyo regatta, marking the nation's debut in the sport.

This article summarising a nation's participation in the Olympic Games is a stub.