Chile competed at the 1984 Summer Olympics in Los Angeles, United States. The nation returned to the Summer Games after participating in the American-led boycott of the 1980 Summer Olympics. 52 competitors, 50 men and 2 women, took part in 25 events in 8 sports.^[1]

Men's 5,000 metres

• Omar Aguilar
  • Heat — 13:51.53
  • Semifinals — 13:51.13 (→ did not advance)

Men's 10,000 metres

• Omar Aguilar
  • Heat — 28:29.06 (→ did not advance)

Men's Marathon

• Alejandro Silva
  • Final — 2:29:53 (→ 57th place)
• Omar Aguilar
  • Final — did not finish (→ no ranking)

Men's 3,000m Steeplechase

• Emilio Ulloa
  • Heat — 8:29.71
  • Semifinals — 8:28.99 (→ did not advance)

Men's Shot Put

• Gert Weil
  • Qualifying Round — 19.94 m
  • Semifinals — 18.69 m (→ 10th place)

Women's 800 metres

• Alejandra Ramos
  • Heat — 2:05.773 (→ did not advance)

Women's 1,500 metres

• Alejandra Ramos
  • Heat — 4:22.03 (→ did not advance)

Women's 3,000 metres

• Monica Regonesi
  • Heat — did not finish (→ did not advance, no ranking)

Women's Marathon

• Monica Regonesi
  • Final — 2:44:44 (→ 32nd place)

Seven cyclists represented Chile in 1984.

Individual road race

• Manuel Aravena — did not finish (→ no ranking)
• Roberto Muñoz — did not finish (→ no ranking)

Sprint

• José Antonio Urquijo

1000m time trial

• Miguel Droguett

Individual pursuit

• Fernando Vera
• Eduardo Cuevas

Team pursuit

• Lino Aquea
• Eduardo Cuevas
• Miguel Droguett
• Fernando Vera

Points race

• Miguel Droguett
• Roberto Muñoz

Men's Team Competition:

• Preliminary Round (Group A)

Norway  v  Chile

29 July 1984 (1984-07-29) 1	Norway	0–0	Chile	Boston
19:30 EDT		Report		Stadium: Harvard Stadium Attendance: 25,000 Referee: David Socha (United States)

Chile  v  Qatar

31 July 1984 (1984-07-31) 2	Chile	1–0	Qatar	Annapolis
19:00 EDT	Baeza 52'	Report		Stadium: Navy–Marine Corps Memorial Stadium Attendance: 14,508 Referee: Luis Paulino Siles (Costa Rica)

Chile  v  France

2 August 1984 (1984-08-02) 3	Chile	1–1	France	Annapolis
19:00 EDT	Santis 5'	Report	Lemoult 50'	Stadium: Navy–Marine Corps Memorial Stadium Attendance: 28,114 Referee: Jan Keizer (Netherlands)

• Quarter Finals

Italy  v  Chile

5 August 1984 (1984-08-05)	Italy	1–0 (a.e.t.)	Chile	Palo Alto
15:00 PDT	Vignola 95' (pen.)	Report		Stadium: Stanford Stadium Attendance: 67,349 Referee: Brian McGinlay (Scotland)

• Team Roster:
  • ( 1.) Eduardo Fournier
  • ( 2.) Daniel Ahumada
  • ( 3.) Luis Mosquera
  • ( 4.) Alex Martínez
  • ( 5.) Leonel Contreras
  • ( 6.) Alejandro Hisis
  • ( 7.) Alfredo Nuñez
  • ( 8.) Jaime Vera
  • ( 9.) Fernando Santis
  • (10.) Sergio Marchant
  • (11.) Juvenal Olmos
  • (12.) Patricio Toledo
  • (13.) Luis Pérez
  • (14.) Sergio Pacheco
  • (15.) Carlos Ramos
  • (16.) Jaime Baeza
  • (17.) Marco Antonio Figueroa
• Head Coach: Pedro Morales Torres

Men's Middleweight

• Eduardo Novoa

• Chile at the 1983 Pan American Games