Jamaica competed at the 1984 Summer Olympics (for the tenth time) in Los Angeles, United States. 45 competitors, 31 men and 14 women, took part in 35 events in 5 sports.
Ray Stewart, Al Lawrence, Greg Meghoo, Norman Edwards and Don Quarrie — Athletics, Men's 4 × 100 m Relay
Merlene Ottey-Page — Athletics, Women's 100 metres
Merlene Ottey-Page — Athletics, Women's 200 metres
Men's 400 metres
Bertland Cameron
Heat — 46.14
Quarterfinals — 45.15
Semifinals — 45.10 (→ advanced to final did not run due to injury)
Devon Morris
Heat — 45.80
Quarterfinals — 46.14 (→ did not advance)
Mark Senior
Heat — 46.73
Quarterfinals — 46.50 (→ did not advance)
Men's Marathon
Derrick Adamson — 2:25:02 (→ 52nd place)
Men's High Jump
Desmond Morris
Qualification — 2.15m (→ did not advance)
Women's 400m Hurdles
Sandra Farmer
Heat — 57.06
Semifinal — 56.05
Final — 57.15 (→ 8th place)
Averill Dwyer-Brown
Heat — 58.42 (→ did not advance)
Women's Long Jump
Dorothy Scott
Qualification — 6.47 m
Final — 6.40 m (→ 10th place)
Women's Discus Throw
Marlene Lewis
Qualification — 49.00m (→ did not advance)
Five cyclists represented Jamaica in 1984.
Individual road race
Arthur Tenn
Lorenzo Murdock
Sprint
Ian Stanley
1000m time trial
David Weller
Points race
Peter Aldridge
Ian Stanley
Men's 100m Freestyle
Deryck Marks
Heat — 54.63 (→ did not advance, 45th place)
Gordon Scarlett
Heat — 55.34 (→ did not advance, 52nd place)
Men's 100m Backstroke
Allan Marsh
Heat — 1:00.04 (→ did not advance, 27th place)
Men's 200m Backstroke
Allan Marsh
Heat — 2:11.57 (→ did not advance, 27th place)
Men's 100m Butterfly
Allan Marsh
Heat — 57.69 (→ did not advance, 33rd place)
Deryck Marks
Heat — 1:00.57 (→ did not advance, 41st place)
Men's 200m Individual Medley
Andrew Phillips
Heat — 2:06.43
Final — 2:05.60 (→ 6th place)
Men's 400m Individual Medley
Andrew Phillips
Heat — 4:29.43
B-Final — 4:27.98 (→ 10th place)
Men's 4 × 100 m Freestyle Relay
Andrew Phillips, Deryck Marks, Allan Marsh, and Gordon Scarlett
Heat — 3:34.87 (→ did not advance, 18th place)
Men's 4 × 100 m Medley Relay
Allan Marsh, Andrew Phillips, Deryck Marks, and Gordon Scarlett
Heat — 4:05.35 (→ did not advance, 17th place)
