Ireland competed at the 2000 Summer Olympics in Sydney, Australia.
Sonia O'Sullivan — Athletics, Women's 5000m
Men's 100m
Paul Brizzell
Round 1 — 10.62 (→ did not advance)
Men's 200m
Paul Brizzell
Round 1 — 20.98 (→ did not advance)
Men's 400m
Tomas Coman
Round 1 — 46.17 (→ did not advance)
Men's 800m
David Matthews
Round 1 — 01:48.77 (→ did not advance)
Men's 1,500m
James Nolan
Round 1 — 03:40.50 (→ did not advance)
Men's 5,000m
Mark Carroll
Round 1 — 13:30.60 (→ did not advance)
Men's 110m Hurdles
Peter Coghlan
Round 1 — 14.03
Round 2 — 13.86 (→ did not advance)
Men's 400m Hurdles
Tom McGuirk
Round 1 — 51.73 (→ did not advance)
Men's 4 × 100 m
Paul Brizzell, Tom Comyns, John McAdorey, Gary Ryan
Round 1 — 39.26 (→ did not advance)
Men's 4 × 400 m
Tomas Coman, Robert Daly, Paul "Junior" McKee, Paul Oppermann
Round 1 — 03:07.42 (→ did not advance)
Men's High Jump
Brendan Reilly
Qualifying — 2.20 (→ did not advance)
Men's Discus
Nick Sweeney
Qualifying — 57.37 (→ did not advance)
John Menton
Qualifying — 54.21 (→ did not advance)
Men's Javelin Throw
Terry McHugh
Qualifying — 79.90 (→ did not advance)
Men's Hammer Throw
Paddy McGrath
Qualifying — 67.00 (→ did not advance)
Men's 20 km Walk
Robert Heffernan
Final — 1:26:04 (→ 28th place)
Men's 50 km Walk
Jamie Costin
Final — 4:24:22 (→ 38th place)
Women's 100m
Sarah Reilly
Round 1 — 11.56
Round 2 — 11.53 (→ did not advance)
Women's 200m
Sarah Reilly
Round 1 — 23.43 (→ did not advance)
Women's 400m
Karen Shinkins
Round 1 — 53.27 (→ did not advance)
Women's 1,500m
Sinead Delahunty
Round 1 — 04:11.75 (→ did not advance)
Women's 5,000m
Sonia O'Sullivan
Round 1 — 15:07.91
Final — 14:41.02 (→ Silver Medal)
Rosemary Ryan
Round 1 — 15:33.05 (→ did not advance)
Breda Dennehy-Willis
Round 1 — 15:49.58 (→ did not advance)
Women's 10,000m
Sonia O'Sullivan
Round 1 — 32:29.93
Final — 30:53.37 (→ 6th place)
Breda Dennehy-Willis
Round 1 — 33:17.45 (→ did not advance)
Women's 400m Hurdles
Susan Smith-Walsh
Round 1 — 57.08 (→ did not advance)
Women's 4 × 400 m
Emily Maher, Martina McCarthy, Ciara Sheehy, Karen Shinkins
Round 1 — 03:32.24 (→ did not advance)
Women's 20 km Walk
Gillian O'Sullivan
Final — 1:33:10 (→ 10th place)
Olive Loughnane
Final — 1:38:23 (→ 35th place)
Women's Singles
Sonya McGinn
Round of 64: Bye
Round of 32: Lost to Mia Audina Tjiptawan of Netherlands (→ did not advance)
Men's 71 kg
Michael Roche
Round 1 — Lost to Firat Karagollu of Turkey (→ did not advance)
Men's Competition
Men's Kayak Singles 500m
Gary Mawer
Qualifying Heat — 01:49.705 (→ did not advance)
Men's Kayak Singles 1000m
Gary Mawer
Qualifying Heat — 03:45.787
Semifinal — 03:50.363 (→ did not advance)
Men's Competition
Men's Kayak Singles
Ian Wiley
Qualifying — 266.42 (→ did not advance)
Women's Competition
Women's Kayak Singles
Eadaoin Ní Challarain
Qualifying — 331.49 (→ did not advance)
Men's Cross Country Mountain Bike
Robin Seymour
Final — 2:20:40.19 (→ 28th place)
Women's Cross Country Mountain Bike
Tarja Owens
Final — Lapped (→ 29th place)
Men's Competition
Men's Road Race
David McCann
Final — 5:30:46 (→ 43rd place)
Ciarán Power
Final — 5:34:58 (→ 74th place)
Women's Competition
Women's Road Race
Deirdre Murphy
Final – DNF (→ no ranking)
Men's Single Handed Dinghy (Finn)
David Burrows
Race 1 — 9
Race 2 — (16)
Race 3 — 7
Race 4 — 15
Race 5 — (19)
Race 6 — 1
Race 7 — 10
Race 8 — 1
Race 9 — 6
Race 10 — 12
Race 11 — 8
Final — 69 (→ 9th place)
Men's Two Handed Keelboat (Star)
Mark Mansfield and David O'Brien
Race 1 — (15)
Race 2 — 12
Race 3 — 12
Race 4 — 10
Race 5 — 7
Race 6 — 9
Race 7 — 13
Race 8 — 3
Race 9 — 11
Race 10 — 13
Race 11 — (17) OCS
Final — 90 (→ 14th place)
Women's Single Handed Dinghy (Europe)
Maria Coleman
Race 1 — 11
Race 2 — 5
Race 3 — 3
Race 4 — 15
Race 5 — (17)
Race 6 — 7
Race 7 — 11
Race 8 — (17)
Race 9 — 9
Race 10 — 14
Race 11 — 11
Final — 86 (→ 12th place)
Men's 200m Butterfly
Colin Lowth
Preliminary Heat — 02:03.91 (→ did not advance)
Men's 100m Breaststroke
Andrew Bree
Preliminary Heat — 01:04.58 (→ did not advance)
Men's 200m Breaststroke
Andrew Bree
Preliminary Heat — 02:18.14 (→ did not advance)
Women's 50m Freestyle
Chantal Gibney
Preliminary Heat — 27.46 (→ did not advance)
Women's 100m Freestyle
Chantal Gibney
Preliminary Heat — 58.79 (→ did not advance)
Women's 200m Freestyle
Chantal Gibney
Preliminary Heat — 02:05.24 (→ did not advance)
Women's 400m Freestyle
Chantal Gibney
Preliminary Heat — 04:23.73 (→ did not advance)
Women's 100m Breaststroke
Emma Robinson
Preliminary Heat — 01:13.41 (→ did not advance)
