On 4 July 2021, judoka Chamara Dharmawardana and artistic gymnast Milka Gehani were announced as Sri Lanka's flag-bearers during the opening ceremony.

One Sri Lankan athlete, Yupun Abeykoon achieved the entry standard through the world ranking, while Nimali Liyanarachchi was awarded a universality spot.

[9][10][11] Sri Lanka received an invitation from the Tripartite Commission to send Niluka Karunaratne in the men's singles, to his third straight Olympics.

[16] Sri Lanka received an invitation from the Tripartite Commission to send Chamara Dharmawardana in the men's lightweight category (73 kg).

[17][18] Sri Lanka received an invitation from the Tripartite Commission to send a women's rifle shooter to the Olympics, as long as the minimum qualifying score (MQS) was fulfilled by June 5, 2021.