Puerto Rico competed at the 1984 Summer Olympics in Los Angeles, United States. 51 competitors, 43 men and 8 women, took part in 45 events in 13 sports.
Luis Ortiz — Boxing, Men's LightweightArístides González — Boxing, Men's MiddleweightIn the third time the nation competed in archery at the Olympics, Puerto Rico entered one man.
Men's Individual Competition
Ismael Rivera — 2089 points (→ 58th place)Men's 200 metres
Luis MoralesNelson ErazoMen's Marathon
Jorge GonzálesFinal — 2:14:00 (→ 13th place)César MercadoFinal — 2:19:09 (→ 31st place)Claudio CabánFinal — 2:27:16 (→ 53rd place)Men's 3,000 m Steeplechase
Carmelo RíosMen's Pole Vault
Edgardo RiveraQualifying Round — 5.10m (→ did not advance)Women's 400 metres
Marie MathieuWomen's 800 metres
Angelita LindWomen's 4×400 metres Relay
Margaret de JesúsEvelyn MathieuMarie MathieuAngelita LindWomen's Marathon
Naydi NazarioFinal — 2:45:49 (→ 33rd place)Women's High Jump
Laura AgrontQualification — 1.80m (→ did not advance, 22nd place)Women's Long Jump
Madeline de JesúsQualification — 5.63 m (→ did not advance, 21st place)Men's Light Flyweight (– 48 kg)
Rafael RamosFirst Round — Defeated Carlos Salazar (Argentina), walk-overSecond Round — Defeated Jesus Herrera (Dominican Republic), on points (4:1)Quarterfinals — Lost to Salvatore Todisco (Italy), on points (1:4)Men's Flyweight (– 51 kg)
José RodríguezMen's Bantamweight (– 54 kg)
Juan MolinaFirst Round — ByeSecond Round — Defeated Jarmo Eskelinen (Finland), 5-0Third Round — Lost to Pedro Nolasco (Dominican Republic), 2-3Men's Featherweight (– 57 kg)
Orlando FernándezMen's Lightweight (– 60 kg)
Luis OrtízMen's Light-Welterweight (– 63.5 kg)
Jorge MaysonetMen's Welterweight (– 67 kg)
Carlos ReyesMen's Light-Middleweight (– 71 kg)
Víctor ClaudioMen's Middleweight (– 75 kg)
Arístides González → Bronze MedalFirst Round — Defeated Otosico Havili (Tonga), 4:1Second Round — Defeated Paulo Tuvale (Samoa), 5:0Quarterfinals — Defeated Pedro van Raamsdonk (Netherlands), 4:1Semifinals — Lost to Shin Joon-Sup (South Korea), 1:4Men's Light-Heavyweight (– 81 kg)
Arcadio FuentesMen's Super Heavyweight (+ 91 kg)
Isaac BarrientosFirst Round — Lost to Tyrell Biggs (USA), 0:5One cyclist represented Puerto Rico in 1984.
Individual road raceRamón Rivera — did not finish (→ no ranking)Two male fencers represented Puerto Rico in 1984
Men's foilEdgardo DíazMen's épéeGilberto PeñaMen's Half-Middleweight
Jorge BonnetMen's Middleweight
José FuentesMen's 100m Freestyle
Fernando CañalesHeat — 51.75 (→ did not advance, 19th place)Antonio PortelaHeat — 52.47 (→ did not advance, 27th place)Men's 200m Freestyle
Fernando CañalesHeat — 1:56.60 (→ did not advance, 37th place)Men's 100m Butterfly
Filiberto ColonHeat — 56.66 (→ did not advance, 28th place)Men's 200m Butterfly
Filiberto ColonHeat — 2:01.80B-Final — 2:01.27 (→ 12th place)Men's 4 × 100 m Freestyle Relay
Fernando Cañales, Miguel Figueroa, Antonio Portela, and Rafael GandarillasHeat — 3:30.66 (→ did not advance, 14th place)Men's Bantamweight Freestyle
Orlando CaceresMen's Featherweight Freestyle
Carmelo FloresMen's Lightweight Freestyle
José Betancourt 
