Costa Rica at the 1984 Summer Olympics

Costa Rica competed at the 1984 Summer Olympics in Los Angeles, United States. The Costa Rican contingent comprised 30 competitors in 5 sports. They did not win any medals.

Athletics
Men's 100 metres
 * Glen Abraham

Men's 200 metres
 * Glen Abraham

Men's 5,000 metres
 * Orlando Mora
 * Heat &mdash; 14:33.49 (→ did not advance)

Men's 10.000 metres
 * Orlando Mora
 * Heat &mdash; 30:49.43 (→ did not advance)

Men's Marathon
 * Ronald Lanzoni &mdash; did not finish (→ no ranking)

Men's Team Competition

 * Preliminary Round (Group D)
 * Costa Rica – United States 0 – 3
 * Costa Rica – Egypt 1 – 4
 * Costa Rica – Italy 1 – 0
 * Quarter Finals
 * → Did not advance
 * Team Roster:
 * ( 1.) Marco Antonio Rojas
 * ( 4.) César Hines
 * ( 5.) Marvin Obando
 * ( 6.) German Chavarria
 * ( 7.) Juan Arnoldo Cayasso
 * ( 8.) Carlos Santana
 * ( 9.) Leonidas Flores
 * (10.) Enrique Rivers
 * (11.) Evaristo Coronado
 * (12.) Minor Alpizar
 * (13.) Carlos Toppings
 * (14.) Guillermo Guardia
 * (15.) Enrique Díaz
 * (16.) Álvaro Solano
 * (17.) Miguel Simpson-Lacey
 * (18.) Luis Galagarza
 * (22.) Alejandro González

Judo

 * Alvaro Sanabria Mora
 * Andrés Sancho
 * Condor Long
 * Ronny Sanabria

Shooting

 * Mariano Lara
 * Roger Cartín
 * Elizabeth Jagush
 * David Bourland

Swimming
Men's 200m Breaststroke
 * Andrey Aguilar
 * Heat &mdash; 2:27.69 (→ did not advance, 29th place)

Men's 200m Butterfly
 * Andrey Aguilar
 * Heat &mdash; 2:08.74 (→ did not advance, 29th place)

Men's 200m Individual Medley
 * Andrey Aguilar
 * Heat &mdash; 2:11.63 (→ did not advance, 26th place)