Ireland at the 1984 Summer Olympics

Infobox Olympics Ireland
games=1984 Summer
competitors=43
sports=
flagbearer=
gold=0
silver=1
bronze=0
total=1
rank=33

Ireland competed at the 1984 Summer Olympics in Los Angeles, United States.

Medalists

Silver

* John Treacy — Athletics, Men's Marathon

Results by event

=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 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 Hammer Throw
* Declan Hegarty :* Qualification — 70.56m (→ did not advance)

* Conor McCullough :* Qualification — 65.56m (→ did not advance)
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 (– 48kg)
*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

=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)