Costa Rica competed at the 2012 Summer Olympics in London from 27 July to 12 August 2012.

Comité Olímpico de Costa Rica sent a total of 11 athletes to the Games, 8 men and 3 women, to compete in 6 sports.

Three of its athletes made their second consecutive Olympic appearance, including marathon runner Gabriela Traña, who was also the nation's flag bearer at the opening ceremony.

Costa Rica, however, failed to win any medal for the third consecutive Olympics.

Costa Rican athletes have so far achieved qualifying standards in the following athletics events (up to a maximum of 3 athletes in each event at the 'A' Standard, and 1 at the 'B' Standard):[2][3] Costa Rica qualified one man.