They were Alex Beddoes in athletics, Jane Nicholas, Kohl Horton, and Jade Tierney in canoeing, and Wesley Roberts and Kirsten Fisher-Marsters in swimming.

The Cook Islands received a universality slot from the IAAF to send a male track and field athlete to the Olympics.

He finished the race in 1:47.26 seconds, seventh out of eight competitors in his heat, and failed to advance to the semi-finals.

[14] The Cook Islands qualified one canoeist in the women's K-1 class, Jane Nicholas, by finishing as the 16th ranked eligible NOC at the 2019 ICF Canoe Slalom World Championships in La Seu d'Urgell, Spain.

[15] Canoeists from the Cook Islands qualified two boats in each of the following distances for the Games through the 2020 Oceania Championships in Penrith, New South Wales.