Dominica 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, because of the COVID-19 pandemic.

[1] It was the nation's seventh appearance at the Summer Olympics.

The following is the list of number of competitors participating in the Games: Dominican athletes further achieved the entry standards, either by qualifying time or by world ranking, in the following track and field events (up to a maximum of 3 athletes in each event):[2][3][4]