Ireland competed at the 1984 Summer Olympics in Los Angeles, It went from July 28, 1984 to August 12, 1984 United States. 42 competitors, 28 men and 13 women, took part in 35 events in 10 sports.
Medalists
Archery
In Ireland's third appearance in archery competition at the Olympics, the nation was represented by two women. This included veteran Hazel Greene.
Women's Individual Competition: Hazel Greene — 2440 points (→ 20th place) Mary Vaughan — 2298 points (→ 39th place)
Athletics
Men's 800 metres
Marcus O'Sullivan
Men's 1,500 metres
Marcus O'Sullivan
Paul Donovan
Frank O'Mara
Men's 5,000 metres
Ray Flynn
Heat — 13:46.84
Semifinals — 13:40.74
Final — 13:34.50 (→ 11th place)
Men's 10,000 metres
John Treacy
Qualifying Heat — 28:18.13
Final — 28:28.68 (→ 9th place)
Men's Marathon
John Treacy
Final — 2:09:56 (→ Silver Medal)
Jerry Kiernan
Final — 2:12:20 (→ 9th place)
Dick Hooper
Final — 2:24:41 (→ 51st place)
Men's 3,000 m Steeplechase
Liam O'Brien
Men's Hammer Throw
Declan Hegarty
Qualification — 70.56m (→ did not advance)
Conor McCullough
Qualification — 65.56m (→ did not advance)
Women's 800 metres
Caroline O'Shea
Women's 3,000 metres
Monica Joyce
Heat — 8:54.34 (→ did not advance)
Roisin Smyth
Heat — 9.01.69 (→ did not advance)
Women's Marathon
Regina Joyce
Final — 2:37:57 (→ 23rd place)
Carey May
Final — 2:41:27 (→ 28th place)
Women's 400m Hurdles
Mary Parr
Heat — 1:01.66 (→ did not advance)
Women's Discus Throw
Patricia Walsh
Qualification — 54.42m
Final — 55.38m (→ 9th place)
Boxing
Men's Light Flyweight (– 48 kg) Gerard Hawkins First Round — Bye Second Round — Lost to Salvatore Todisco (ITA), 0:5
Men's Bantamweight (– 54 kg) Phillip Sutcliffe First Round — Bye Second Round — Lost to Maurizio Stecca (ITA), 0:5
Canoeing
Men's K1 1000m
Ian Pringle
Men's K1 500m
Ian Pringle
Cycling
Five cyclists represented Ireland in 1984.
Individual road race
Martin Earley
Paul Kimmage
Gary Thomson
Séamus Downey
Team time trial
Philip Cassidy
Martin Earley
Paul Kimmage
Gary Thomson
Equestrianism
Judo
Sailing
Shooting
Swimming
Women's 100m Freestyle
Carolann Heavey
Heat — 1:01.34 (→ did not advance, 33rd place)
Women's 200m Freestyle
Carolann Heavey
Heat — 2:06.61 (→ did not advance, 20th place)
Women's 400m Freestyle
Carolann Heavey
Heat — 4:36.07 (→ did not advance, 22nd place)
Women's 200m Butterfly
Julie Parkes
Heat — 2:20.85 (→ did not advance, 21st place)