Silver

• Sonia O'Sullivan
  Sonia O'Sullivan
  Sonia O'Sullivan in Cobh, County Cork. She began her running career in Ballymore Running Club which is located in the eastern side of Cobh Town. She was one of the world's leading female 5000 m runners for most of the 1990s and early first decade of the 21st century...
  
   — Athletics
  Athletics at the 2000 Summer Olympics
  At the 2000 Summer Olympics in Sydney, 46 events in athletics were contested, 24 for men and 22 for women. There were a total number of 2134 participating athletes from 193 countries.-Men's events:...
  
  , Women's 5.000m

Men's Competition

• Paul Brizzell
• Round 1 — 10.62 (→ did not advance)

• Paul Brizzell
• Round 1 — 20.98 (→ did not advance)

• Tomas Coman
• Round 1 — 46.17 (→ did not advance)

• David Matthews
• Round 1 — 01:48.77 (→ did not advance)

• James Nolan
  James Nolan
  James Nolan is an athletics coach who was an Irish international runner from 1996 until 2008. He was a two time Olympian who specialized in the 800 metres between 1996 and 2000 before changing to the 1500 metres later that year...
  
  
• Round 1 — 03:40.50 (→ did not advance)

• Mark Carroll
  Mark Carroll (athlete)
  Mark Carroll is a former Irish runner that went to school in The North Monastery, who specialized in the 5000 metres...
  
  
• Round 1 — 13:30.60 (→ did not advance)

• Peter Coghlan
• Round 1 — 14.03
• Round 2 — 13.86 (→ did not advance)

• Tom McGuirk
• Round 1 — 51.73 (→ did not advance)

• Paul Brizzell, Tom Comyns, John McAdorey, Gary Ryan
  Gary Ryan
  Gary Ryan is a former Irish sprinter who specialised in the 200 metres. On retirement he worked for the Irish athletics association as Director of Coaching before leaving in January, 2009 for a position with the National University of Ireland, Galway.Ryan won the bronze medal in 4 x 400 metres...
  
  
• Round 1 — 39.26 (→ did not advance)

• Tomas Coman, Robert Daly
  Robert Daly (sprinter)
  Robert Daly is an Irish sprinter who specializes in the 400 metres.Daly won the bronze medal in 4 x 400 metres relay at the 2004 World Indoor Championships, together with teammates Gary Ryan, David Gillick and David McCarthy....
  
  , Paul "Junior" McKee, Paul Oppermann
• Round 1 — 03:07.42 (→ did not advance)

• Brendan Reilly
• Qualifying — 2.20 (→ did not advance)

• Nick Sweeney
  Nick Sweeney
  Nick Sweeney is a retired Irish discus thrower, who represented his native country in four consecutive Summer Olympics, starting 1992 . He is the current Irish national record holder in the discus , and won a total number of ten Irish national discus titles...
  
  
• Qualifying — 57.37 (→ did not advance)

• John Menton
• Qualifying — 54.21 (→ did not advance)

• Terry McHugh
  Terry McHugh
  Terry McHugh is a retired Irish javelin thrower, who finished tenth at the 1993 World Championships and seventh at the 1994 European Championships. He qualified for four Summer Olympics – 1998 Seoul , 1992 Barcelona , 1996 Atlanta & 2000 Sydney . He won 21 consecutive national titles from 1984 to...
  
  
• Qualifying — 79.90 (→ did not advance)

• Paddy McGrath
  Paddy McGrath
  Paddy McGrath is an Irish sportsperson. He plays Gaelic football with his local club Ardara and has been a member of the Donegal senior inter-county team since 2010. McGrath was part of the Donegal U21 squad which qualified for the All-Ireland U21 Final, losing out to Dublin.-References:...
  
  
• Qualifying — 67.00 (→ did not advance)

• Robert Heffernan
  Robert Heffernan
  Robert Heffernan is an Irish race walker. Having been seen as one of Ireland's best hopes of an athletics medal at the 2008 Olympic Games, he came eighth in the 20km Walk. His wife Marian Andrews is also national women's 400 metres champion and was on the Irish women's team that finished 4th in...
  
  
• Final — 1:26:04 (→ 28th place)

• Jamie Costin
  Jamie Costin
  James Costin is an Irish race walker from Ring, County Waterford.He has qualified to represent Ireland in the 50km Walk at three Olympic Games...
  
  
• Final — 4:24:22 (→ 38th place)

Women's Competition

• Sarah Reilly
• Round 1 — 11.56
• Round 2 — 11.53 (→ did not advance)

• Sarah Reilly
• Round 1 — 23.43 (→ did not advance)

• Karen Shinkins
• Round 1 — 53.27 (→ did not advance)

• Sinead Delahunty
• Round 1 — 04:11.75 (→ did not advance)

• Sonia O'Sullivan
  Sonia O'Sullivan
  Sonia O'Sullivan in Cobh, County Cork. She began her running career in Ballymore Running Club which is located in the eastern side of Cobh Town. She was one of the world's leading female 5000 m runners for most of the 1990s and early first decade of the 21st century...
  
  
• 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)

• Sonia O'Sullivan
  Sonia O'Sullivan
  Sonia O'Sullivan in Cobh, County Cork. She began her running career in Ballymore Running Club which is located in the eastern side of Cobh Town. She was one of the world's leading female 5000 m runners for most of the 1990s and early first decade of the 21st century...
  
  
• Round 1 — 32:29.93
• Final — 30:53.37 (→ 6th place)

• Breda Dennehy-Willis
• Round 1 — 33:17.45 (→ did not advance)

• Susan Smith-Walsh
• Round 1 — 57.08 (→ did not advance)

• Emily Maher, Martina McCarthy, Ciara Sheehy, Karen Shinkins
• Round 1 — 03:32.24 (→ did not advance)

• Gillian O'Sullivan
  Gillian O'Sullivan
  Gillian O'Sullivan is an Irish race walker. She has held the world record in the 5000m walk since 2002 and won a silver medal at the world championship in 2003 over 20km. It was the first time since 1995 that an Irish athlete had won a World Championship medal...
  
  
• Final — 1:33:10 (→ 10th place)

• Olive Loughnane
  Olive Loughnane
  Olive Loughnane is an Irish race walker. She has competed in three Olympic Games . Loughnane has represented Ireland at five consecutive editions of the World Championships in Athletics and she won a silver medal at the 2009 World Championships. Loughnane earned $30,000 in prize money from the...
  
  
• Final — 1:38:23 (→ 35th place)

Badminton

• Sonya McGinn
• Round of 64: Bye
• Round of 32: Lost to Mia Audina Tjiptawan of Netherlands (→ did not advance)

Boxing

• Michael Roche
• Round 1 — Lost to Firat Karagollu of Turkey (→ did not advance)

Men's Competition

• Gary Mawer
  Gary Mawer
  Gary Mawer is an Irish sprint canoer who has competed from the mid 1990s to the early 2000s. At the 1996 Summer Olympics in Atlanta, he was eliminated in the repechages of both the K-2 500 m and the K-2 1000 m event. Four years later, Mawer was eliminated in the heats of the K-1 500 m event and...
  
  
• Qualifying Heat — 01:49.705 (→ did not advance)

• Gary Mawer
  Gary Mawer
  Gary Mawer is an Irish sprint canoer who has competed from the mid 1990s to the early 2000s. At the 1996 Summer Olympics in Atlanta, he was eliminated in the repechages of both the K-2 500 m and the K-2 1000 m event. Four years later, Mawer was eliminated in the heats of the K-1 500 m event and...
  
  
• Qualifying Heat — 03:45.787
• Semifinal — 03:50.363 (→ did not advance)

Men's Competition

• Ian Wiley
  Ian Wiley
  Ian Wiley is an Irish slalom canoer who competed from the early 1990s to the early 2000s. Competing in three Summer Olympics, he earned his best finish of fifth in the K-1 event at Atlanta in 1996.-References:*...
  
  
• Qualifying — 266.42 (→ did not advance)

Women's Competition

• Eadaoin Ni Challarain
  Eadaoin Ni Challarain
  Eadaoin Ní Challarain is an Irish slalom canoer who competed in two Olympic Games. She was 11th at the Athens 2004 Olympic Games. She also competed in Freestyle Kayaking.-References:**...
  
  
• Qualifying — 331.49 (→ did not advance)

Cross Country Mountain Bike

• Robin Seymour
  Robin Seymour
  Robin Seymour is a professional Mountain bike racer and cyclo cross racer that rides for the WORC team. Seymour is a former Motorbike racer that turned to cycling...
  
  
• Final — 2:20:40.19 (→ 28th place)

• Tarja Owens
• Final — Lapped (→ 29th place)

Men's Competition

• David McCann
  David McCann
  David McCann is an Irish professional road bicycle racer. He used to cycle for the Taiwan-based UCI Continental team Giant Asia Racing.McCann was the Irish national road race champion in 2000, 2001 and 2006...
  
  
• Final — 5:30:46 (→ 43rd place)

• Ciarán Power
  Ciarán Power
  Ciarán Power a.k.a powershower is a former professional cyclist. He is a member of the Irish Pezula Racing Team. Power turned professional in 2000 with Linda McCartney Racing Team and rode the 2000 Giro d'Italia, gaining 2 top ten stage finishes. He was the first Irish cyclist in a major tour...
  
  
• Final — 5:34:58 (→ 74th place)

Women's Competition

• Deirdre Murphy
• Final – DNF (→ no ranking)

Sailing

• David Burrows
  David Burrows (sailor)
  David Burrows is an Irish sailor. He competed at the 1996, 2000 and 2004 Summer Olympics. His best Olympic result is a 9th place in the Finn class in Sydney in 2000.-References:...
  
  
• 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)

• 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)

• 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)

Swimming

• Colin Lowth
  Colin Lowth
  Colin Lowth is a former Irish swimmer who represented Ireland at the 2000 Olympic Games. His name is often spelt "Louth" also.- Swimming career :...
  
  
• Preliminary Heat — 02:03.91 (→ did not advance)

• Andrew Bree
  Andrew Bree
  Andrew Patrick Bree is a breaststroke swimmer from Helen's Bay, Co. Down Northern Ireland. He is a 2-time Irish Olympian, having swum at the 2000 and 2008 Olympics....
  
  
• Preliminary Heat — 01:04.58 (→ did not advance)

• Andrew Bree
  Andrew Bree
  Andrew Patrick Bree is a breaststroke swimmer from Helen's Bay, Co. Down Northern Ireland. He is a 2-time Irish Olympian, having swum at the 2000 and 2008 Olympics....
  
  
• Preliminary Heat — 02:18.14 (→ did not advance)

• Chantal Gibney
• Preliminary Heat — 27.46 (→ did not advance)

• Chantal Gibney
• Preliminary Heat — 58.79 (→ did not advance)

• Chantal Gibney
• Preliminary Heat — 02:05.24 (→ did not advance)

• Chantal Gibney
• Preliminary Heat — 04:23.73 (→ did not advance)

• Emma Robinson
• Preliminary Heat — 01:13.41 (→ did not advance)