# Ireland at the 2020 Summer Olympics

The team of the Olympic Federation of Ireland, which competed at the 2020 Summer Olympics in Tokyo, represented athletes from both the Republic of Ireland and those from Northern Ireland who choose it instead of the Great Britain and Northern Ireland team. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, due to the COVID-19 pandemic. It was the team's twenty-second appearance at the Summer Olympics, having attended every edition since 1924 (before then the whole of Ireland was represented by the Great Britain and Ireland team) except the 1936 Summer Olympics in Germany.

## Medalists

| Medal | Name | Sport | Event | Date |
| Gold | Paul O'Donovan Fintan McCarthy | Rowing | Men's lightweight double sculls | 29 July |
| Gold | Kellie Harrington | Boxing | Women's lightweight | 8 August |
| Bronze | Aifric Keogh Eimear Lambe Fiona Murtagh Emily Hegarty | Rowing | Women's coxless four | 28 July |
| Bronze | Aidan Walsh | Boxing | Men's welterweight | 1 August |
Medals by sport :
| Sport | | | | Total |
| Boxing | 1 | 0 | 1 | 2 |
| Rowing | 1 | 0 | 1 | 2 |
| Total | 2 | 0 | 2 | 4 |
Medals by gender :
| Gender | | | | Total |
| Male | 1 | 0 | 1 | 2 |
| Female | 1 | 0 | 1 | 2 |
| Total | 2 | 0 | 2 | 4 |

## Competitors

The following is the list of number of competitors in the Games. Note that reserves in field hockey are not counted:
| Sport | Men | Women | Total |
| Athletics | 13 | 12 | 25 |
| Badminton | 1 | 0 | 1 |
| Boxing | 4 | 3 | 7 |
| Canoeing | 1 | 0 | 1 |
| Cycling | 5 | 2 | 7 |
| Diving | 1 | 1 | 2 |
| Equestrian | 5 | 2 | 7 |
| Field hockey | 0 | 16 | 16 |
| Golf | 2 | 2 | 4 |
| Gymnastics | 1 | 1 | 2 |
| Judo | 1 | 1 | 2 |
| Modern pentathlon | 0 | 1 | 1 |
| Rowing | 4 | 9 | 13 |
| Rugby sevens | 12 | 0 | 12 |
| Sailing | 2 | 1 | 3 |
| Shooting | 1 | 0 | 1 |
| Swimming | 6 | 3 | 9 |
| Taekwondo | 1 | 0 | 1 |
| Triathlon | 1 | 1 | 2 |
| Total | 61 | 55 | 116 |

## Athletics

Irish athletes further achieved the entry standards, either by qualifying time or by world ranking, in the following track and field events (up to a maximum of 3 athletes in each event).

### Key

* Note–Ranks given for track events are within the athlete's heat only
* Q = Qualified for the next round
* q = Qualified for the next round as a fastest loser or, in field events, by position without achieving the qualifying target
* NR = National record
* N/A = Round not applicable for the event
* Bye = Athlete not required to compete in round
* DNF = Did not finish

### Men

| Athlete | Event | Heat | Heat | Semifinal | Semifinal | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank |
| Marcus Lawler | 200 m | 20.73 | 6 | Did not advance | Did not advance | Did not advance | Did not advance |
| Leon Reid | 200 m | 20.53 | 5 q | 20.54 | 7 | Did not advance | Did not advance |
| Mark English | 800 m | 1:46.75 | 4 | Did not advance | Did not advance | Did not advance | Did not advance |
| Andrew Coscoran | 1500 m | 3:37.11 | 8 q | 3:35.84 | 10 | Did not advance | Did not advance |
| Thomas Barr | 400 m hurdles | 49.02 | 2 Q | 48.26 | 4 | Did not advance | Did not advance |
| David Kenny | 20 km walk | — | — | — | — | 1:26:54 | 29 |
| Paul Pollock | Marathon | — | — | — | — | 2:27:48 | 71 |
| Stephen Scullion | Marathon | — | — | — | — | DNF | DNF |
| Kevin Seaward | Marathon | — | — | — | — | 2:21:45 | 58 |
| Brendan Boyce | 50 km walk | — | — | — | — | 3:53:40 | 10 |
| Alex Wright | 50 km walk | — | — | — | — | 4:06:20 | 29 |

### Women

| Athlete | Event | Heat | Heat | Semifinal | Semifinal | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank |
| Phil Healy | 200 m | 23.21 | 5 | Did not advance | Did not advance | Did not advance | Did not advance |
| Phil Healy | 400 m | 51.98 | 4 | Did not advance | Did not advance | Did not advance | Did not advance |
| Síofra Cléirigh Büttner | 800 m | 2:04.62 | 7 | Did not advance | Did not advance | Did not advance | Did not advance |
| Nadia Power | 800 m | 2:03.74 | 7 | Did not advance | Did not advance | Did not advance | Did not advance |
| Louise Shanahan | 800 m | 2:03.57 | 7 | Did not advance | Did not advance | Did not advance | Did not advance |
| Sarah Healy | 1500 m | 4:09.78 | 11 | Did not advance | Did not advance | Did not advance | Did not advance |
| Ciara Mageean | 1500 m | 4:07.29 | 10 | Did not advance | Did not advance | Did not advance | Did not advance |
| Sarah Lavin | 100 m hurdles | 13.16 | 7 | Did not advance | Did not advance | Did not advance | Did not advance |
| Michelle Finn | 3000 m steeplechase | 9:36.26 | 9 | — | — | Did not advance | Did not advance |
| Eilish Flanagan | 3000 m steeplechase | 9:34.86 | 12 | — | — | Did not advance | Did not advance |
| Aoife Cooke | Marathon | — | — | — | — | DNF | DNF |
| Fionnuala McCormack | Marathon | — | — | — | — | 2:34:09 | 25 |

### Mixed

| Athlete | Event | Heat | Heat | Final | Final |
| Athlete | Event | Result | Rank | Result | Rank |
| Sophie Becker Cillín Greene Phil Healy Chris O'Donnell | 4 × 400 m relay | 3:12.88 NR | 4 Q | 3:15.04 | 8 |

## Badminton

Ireland entered one badminton player into the Olympic tournament. Vietnamese-born Nhat Nguyen was selected to compete in the men's singles based on the BWF World Race to Tokyo Rankings.
| Athlete | Event | Group Stage | Group Stage | Group Stage | Elimination | Quarterfinal | Semifinal | Final / BM | Final / BM |
| Athlete | Event | Opposition Score | Opposition Score | Rank | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank |
| Nhat Nguyen | Men's singles | Karunaratne (SRI) W (21–16, 21–14) | Wang T-w (TPE) L (12–21, 21–18, 12–21) | 2 | Did not advance | Did not advance | Did not advance | Did not advance | Did not advance |

## Boxing

Ireland entered seven boxers (four men and three women) to compete in the following weight classes into the Olympic tournament. Six of them, including Rio 2016 Olympian Brendan Irvine (men's flyweight), secured the spots on the Irish squad in their respective weight divisions, either by winning the round of 16 match, advancing to the semifinal match, or scoring a box-off triumph, at the 2020 European Qualification Tournament in London and Paris. Kurt Walker completed the nation's boxing lineup by topping the list of eligible boxers from Europe in the men's featherweight division of the IOC's Boxing Task Force Rankings.

### Men

| Athlete | Event | Round of 32 | Round of 16 | Quarterfinals | Semifinals | Final | Final |
| Athlete | Event | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Rank |
| Brendan Irvine | Flyweight | Paalam (PHI) L 1–4 | Did not advance | Did not advance | Did not advance | Did not advance | Did not advance |
| Kurt Walker | Featherweight | Quiles (ESP) W 5–0 | Mirzakhalilov (UZB) W 4–1 | Ragan (USA) L 2–3 | Did not advance | Did not advance | Did not advance |
| Aidan Walsh | Welterweight | Bye | Mengue (CMR) W 5–0 | Clair (MRI) W 4–1 | McCormack (GBR) L WO | Did not advance | |
| Emmett Brennan | Light heavyweight | Ruzmetov (UZB) L 0–5 | Did not advance | Did not advance | Did not advance | Did not advance | Did not advance |

### Women

| Athlete | Event | Round of 32 | Round of 16 | Quarterfinals | Semifinals | Final | Final |
| Athlete | Event | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Rank |
| Kellie Harrington | Lightweight | Bye | Nicoli (ITA) W 5–0 | Khelif (ALG) W 5–0 | Seesondee (THA) W 3–2 | Ferreira (BRA) W 5–0 | |
| Michaela Walsh | Featherweight | Bye | Testa (ITA) L 1–4 | Did not advance | Did not advance | Did not advance | Did not advance |
| Aoife O'Rourke | Middleweight | — | Li Q (CHN) L 0–5 | Did not advance | Did not advance | Did not advance | Did not advance |

## Canoeing
### Slalom

Ireland qualified one canoeist for the men's C-1 class by finishing in the top eleven at the 2019 ICF Canoe Slalom World Championships in La Seu d'Urgell, Spain.
| Athlete | Event | Preliminary | Preliminary | Preliminary | Preliminary | Preliminary | Preliminary | Semifinal | Semifinal | Final | Final |
| Athlete | Event | Run 1 | Rank | Run 2 | Rank | Best | Rank | Time | Rank | Time | Rank |
| Liam Jegou | Men's C-1 | 174.57 | 18 | 104.40 | 9 | 104.40 | 11 Q | 208.39 | 15 | Did not advance | Did not advance |

## Cycling
### Road

Ireland entered three riders to compete in the men's Olympic road race, by virtue of their top 50 national finish (for men) in the UCI World Ranking.
| Athlete | Event | Time | Rank |
| Eddie Dunbar | Men's road race | 6:21:46 | 76 |
| Dan Martin | Men's road race | 6:09:04 | 16 |
| Nicolas Roche | Men's road race | 6:21:46 | 75 |
| Nicolas Roche | Men's time trial | 1:01:23.13 | 28 |

### Track

Following the completion of the 2020 UCI Track Cycling World Championships, Irish riders accumulated spots for both men and women in the omnium and madison, based on their country's results in the final UCI Olympic rankings.

#### Omnium

| Athlete | Event | Scratch race | Scratch race | Tempo race | Tempo race | Elimination race | Elimination race | Points race | Points race | Total | Total |
| Athlete | Event | Rank | Points | Rank | Points | Rank | Points | Rank | Points | Points | Rank |
| Mark Downey | Men's omnium | 16 | 10 | 19 | 4 | 19 | 4 | 9 | 0 | 18 | 17 |
| Emily Kay | Women's omnium | 13 | 16 | 13 | 16 | 9 | 24 | 15 | 0 | 56 | 13 |

#### Madison

| Athlete | Event | Points | Laps | Rank |
| Mark Downey Felix English | Men's madison | DNF | –40 | =12 |
| Emily Kay Shannon McCurley | Women's madison | DNF | –40 | =13 |

## Diving

Ireland entered two divers into the Olympic competition after finishing in the top 12 each of the men's springboard and women's platform, respectively, at the 2021 FINA Diving World Cup in Tokyo, Japan.
| Athlete | Event | Preliminary | Preliminary | Semifinal | Semifinal | Final | Final |
| Athlete | Event | Points | Rank | Points | Rank | Points | Rank |
| Oliver Dingley | Men's 3 m springboard | 335.00 | 25 | Did not advance | Did not advance | Did not advance | Did not advance |
| Tanya Watson | Women's 10 m platform | 289.40 | 16 Q | 278.15 | 15 | Did not advance | Did not advance |

## Equestrian

Irish equestrians qualified a full squad in both the team dressage and eventing competitions; the former by securing the second of three available berths for Group A and B at the European Championships in Rotterdam, Netherlands, and the latter by finishing among the top six nations at the 2018 FEI World Equestrian Games in Tryon, North Carolina, United States. A team of jumping riders was added to the Irish equestrian squad by winning the gold medal at the FEI Nations Cup Final in Barcelona, Spain. Tokyo 2020 would have been the first time that Ireland participated in an Olympic team dressage competition.
The Irish eventing and jumping squads were named on 21 June 2021. The dressage squad was withdrawn following a series of individual withdrawals due to a horse retirement, veterinary and medical reasons. An individual dressage place had been sought and was eventually offered in favor of Heike Holstein. James Connor and Dane Rawlins have appealed the decision to withdraw the dressage team.

### Dressage

| Athlete | Horse | Event | Grand Prix | Grand Prix | Grand Prix Freestyle | Grand Prix Freestyle | Overall | Overall |
| Athlete | Horse | Event | Score | Rank | Technical | Artistic | Score | Rank |
| Heike Holstein | Sambuca | Individual | 68.432 | 37 | Did not advance | Did not advance | Did not advance | Did not advance |
Qualification Legend: Q = Qualified for the final; q = Qualified for the final as a lucky loser

### Eventing

Austin O'Connor and Colorado Blue had been named as reserves, but replaced Cathal Daniels and Rioghan Rua shortly before the competition commenced.
| Athlete | Horse | Event | Dressage | Dressage | Cross-country | Cross-country | Cross-country | Jumping | Jumping | Jumping | Jumping | Jumping | Jumping | Total | Total |
| Athlete | Horse | Event | Dressage | Dressage | Cross-country | Cross-country | Cross-country | Qualifier | Qualifier | Qualifier | Final | Final | Final | | | Total | Total |
| Athlete | Horse | Event | Penalties | Rank | Penalties | Total | Rank | Penalties | Total | Rank | Penalties | Total | Rank | Penalties | Rank |
| Sarah Ennis | Woodcourt Garrison | Individual | 38.10 | 50 | 37.60 | 75.70 | 41 | 4.00 | 79.70 | 36 | Did not advance | Did not advance | Did not advance | 79.70 | 36 |
| Austin O'Connor | Colorado Blue | Individual | 38.00 | 49 | 0.00 | 38.00 | 20 | 4.00 | 42.00 | 18 Q | 4.00 | 46.00 | 13 | 46.00 | 13 |
| Sam Watson | Flamenco | Individual | 34.30 | 38 | 13.00 | 47.30 | 31 | 8.00 | 55.30 | 30 | Did not advance | Did not advance | Did not advance | 55.30 | 30 |
| Sarah Ennis Austin O'Connor Sam Watson | See above | Team | 110.40 | 13 | 50.60 | 161.00 | 8 | 16.00 | 177.00 | 8 | — | — | — | 177.00 | 8 |

### Jumping

Shane Sweetnam and Alejandro were named the travelling alternates and replaced Cian O'Connor and Kilkenny before the team event.
| Athlete | Horse | Event | Qualification | Qualification | Final | Final | Final |
| Athlete | Horse | Event | Penalties | Rank | Penalties | Time | Rank |
| Bertram Allen | Pacino Amiro | Individual | 0 | =1 Q | 8 | 84.64 | 15 |
| Darragh Kenny | Cartello | Individual | 0 | =1 Q | 8 | 85.11 | 17 |
| Cian O'Connor | Kilkenny | Individual | 0 | =1 Q | 1 | 88.45 | 7 |
| Bertram Allen Darragh Kenny Shane Sweetnam | Alejandro Pacino Amiro Cartello | Team | Eliminated | Eliminated | did not advance | did not advance | did not advance |

## Field hockey
### Summary

Key:
* FT – After full time.
* P – Match decided by penalty-shootout.
| Team | Event | Group Stage | Group Stage | Group Stage | Group Stage | Group Stage | Group Stage | Quarterfinal | Semifinal | Final / BM | Final / BM |
| Team | Event | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank | Opposition Score | Opposition Score | Opposition Score | Rank |
| Ireland women's | Women's tournament | South Africa W 2–0 | Netherlands L 0–4 | Germany L 2–4 | India L 0–1 | Great Britain L 0–2 | 5 | Did not advance | Did not advance | Did not advance | Did not advance |

### Women's tournament

Ireland women's national field hockey team qualified for the Olympics by securing one of the seven team berths available from the 2019 Women's FIH Olympic Qualifiers, defeating Canada 4–3 in a penalty shoot-out, having drawn 0–0 on aggregate over a two-match playoff in Dublin. This will be the first time Ireland compete in women's field hockey at the Olympics.

#### Team roster

The squad was announced on 21 June 2021.
Head coach: Sean Dancer
| No. | Pos. | Player | Date of birth (age) | Caps | Goals | Club |
| 1 | GK | Ayeisha McFerran | (1996-01-10)10 January 1996 (aged 25) | 105 | {{{goals}}} | Kampong |
| 2 | MF | Chloe Watkins | (1992-03-07)7 March 1992 (aged 29) | 229 | {{{goals}}} | Monkstown |
| 3 | DF | Hannah Matthews | (1991-03-24)24 March 1991 (aged 30) | 152 | {{{goals}}} | Loreto |
| 4 | FW | Sarah Torrans | (1999-02-14)14 February 1999 (aged 22) | 26 | {{{goals}}} | Loreto |
| 5 | MF | Nicola Daly | (1988-04-03)3 April 1988 (aged 33) | 196 | {{{goals}}} | Loreto |
| 6 | DF | Róisín Upton | (1994-04-01)1 April 1994 (aged 27) | 81 | {{{goals}}} | Catholic Institute |
| 7 | DF | Hannah McLoughlin | (1999-12-02)2 December 1999 (aged 21) | 19 | {{{goals}}} | UCD |
| 8 | FW | Deirdre Duke | (1992-06-09)9 June 1992 (aged 29) | 146 | {{{goals}}} | Old Alex |
| 9 | FW | Kathryn Mullan (Captain) | (1994-04-07)7 April 1994 (aged 27) | 198 | {{{goals}}} | Ballymoney |
| 10 | DF | Shirley McCay | (1988-06-07)7 June 1988 (aged 33) | 311 | {{{goals}}} | Pegasus |
| 11 | MF | Sarah Hawkshaw | (1995-11-04)4 November 1995 (aged 25) | 38 | {{{goals}}} | Railway Union |
| 12 | DF | Elena Tice | (1997-11-16)16 November 1997 (aged 23) | 114 | {{{goals}}} | Old Alex |
| 13 | FW | Naomi Carroll | (1992-09-13)13 September 1992 (aged 28) | 115 | {{{goals}}} | Catholic Institute |
| 14 | MF | Elizabeth Holden | (1990-01-04)4 January 1990 (aged 31) | 201 | {{{goals}}} | Belfast Harlequins |
| 15 | DF | Sarah McAuley | (2001-09-25)25 September 2001 (aged 19) | 1 | {{{goals}}} | Muckross |
| 16 | FW | Anna O'Flanagan | (1990-02-18)18 February 1990 (aged 31) | 212 | {{{goals}}} | Muckross |
| 17 | MF | Michelle Carey | (1999-05-05)5 May 1999 (aged 22) | 5 | {{{goals}}} | UCD |
| 18 | FW | Zara Malseed | (1997-06-11)11 June 1997 (aged 24) | 2 | {{{goals}}} | Ards |

#### Group play

| Pos | Teamvte | Pld | W | D | L | GF | GA | GD | Pts | Qualification |
| 1 | Netherlands | 5 | 5 | 0 | 0 | 18 | 2 | +16 | 15 | Quarterfinals |
| 2 | Germany | 5 | 4 | 0 | 1 | 13 | 7 | +6 | 12 | Quarterfinals |
| 3 | Great Britain | 5 | 3 | 0 | 2 | 11 | 5 | +6 | 9 | Quarterfinals |
| 4 | India | 5 | 2 | 0 | 3 | 7 | 14 | −7 | 6 | Quarterfinals |
| 5 | Ireland | 5 | 1 | 0 | 4 | 4 | 11 | −7 | 3 | |
| 6 | South Africa | 5 | 0 | 0 | 5 | 5 | 19 | −14 | 0 | |
* 24 July 2021 (2021-07-24) 21:15 v
| Ireland | 2–0 | South Africa |
| Upton 9' Torrans 45' | Report | |
* South Pitch Umpires: Kelly Hudson (NZL) Emi Yamada (JPN)
* 26 July 2021 (2021-07-26) 10:00 v
| Netherlands | 4–0 | Ireland |
| Albers 8' Pheninckx 49' Leurink 50' Matla 56' | Report | |
* South Pitch Umpires: Michelle Meister (GER) Liu Xiaoying (CHN)
* 28 July 2021 (2021-07-28) 12:15 v
| Germany | 4–2 | Ireland |
| Altenburg 10', 40' Pieper 20' Hauke 55' | Report | Tice 42' McLoughlin 51' |
* South Pitch Umpires: Michelle Joubert (RSA) Sarah Wilson (GBR)
* 30 July 2021 (2021-07-30) 11:45 v
| Ireland | 0–1 | India |
| | Report | Navneet 57' |
* North Pitch Umpires: Aleisha Neumann (AUS) Annelize Rostron (RSA)
* 31 July 2021 (2021-07-31) 20:45 v
| Ireland | 0–2 | Great Britain |
| | Report | Townsend 17' Martin 32' |
* North Pitch Umpires: Carolina de la Fuente (ARG) Emi Yamada (JPN)

## Golf

Ireland entered two male and two female golfers into the Olympic tournament. Rory McIlroy (world no. 10) and Shane Lowry (world no. 42) qualified directly among the top 60 eligible players for the men's event based on the IGF World Rankings of 20 June 2021.
| Athlete | Event | Round 1 | Round 2 | Round 3 | Round 4 | Total | Total | Total |
| Athlete | Event | Score | Score | Score | Score | Score | Par | Rank |
| Shane Lowry | Men's | 70 | 65 | 68 | 70 | 274 | −10 | =22 |
| Rory McIlroy | Men's | 69 | 66 | 67 | 67 | 269 | −15 | =4 |
| Leona Maguire | Women's | 71 | 67 | 70 | 71 | 279 | −5 | =23 |
| Stephanie Meadow | Women's | 72 | 66 | 68 | 66 | 272 | −12 | 7 |

## Gymnastics
### Artistic

Ireland entered one male and one female artistic gymnast into the Olympic competition. Rhys McClenaghan secured one of the two spots available for individual based gymnasts, neither part of the team nor qualified through the all-around, at the 2019 World Championships in Stuttgart, Germany. Megan Ryan received a re-allocated spot from the 2019 World Championships after North Korea withdrew from the Olympic Games.

#### Men

| Athlete | Event | Qualification | Qualification | Qualification | Qualification | Qualification | Qualification | Qualification | Qualification | Final | Final | Final | Final | Final | Final | Final | Final |
| Athlete | Event | Apparatus | Apparatus | Apparatus | Apparatus | Apparatus | Apparatus | Total | Rank | Apparatus | Apparatus | Apparatus | Apparatus | Apparatus | Apparatus | Total | Rank |
| Athlete | Event | F | PH | R | V | PB | HB | Total | Rank | F | PH | R | V | PB | HB | Total | Rank |
| Rhys McClenaghan | Pommel horse | — | 15.266 | — | — | — | — | 15.266 | =2 Q | — | 13.100 | — | — | — | — | 13.100 | 7 |

#### Women

| Athlete | Event | Qualification | Qualification | Qualification | Qualification | Qualification | Qualification | Final | Final | Final | Final | Final | Final |
| Athlete | Event | Apparatus | Apparatus | Apparatus | Apparatus | Total | Rank | Apparatus | Apparatus | Apparatus | Apparatus | Total | Rank |
| Athlete | Event | F | UB | BB | V | Total | Rank | F | UB | BB | V | Total | Rank |
| Megan Ryan | All-around | 13.200 | 11.533 | 10.466 | 12.000 | 47.199 | 72 | Did not advance | Did not advance | Did not advance | Did not advance | Did not advance | Did not advance |

## Judo

Ireland entered two judoka (one man and one woman) into the Olympic tournament based on the International Judo Federation Olympics Individual Ranking.
| Athlete | Event | Round of 32 | Round of 16 | Quarterfinals | Semifinals | Repechage | Final / BM | Final / BM |
| Athlete | Event | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Rank |
| Benjamin Fletcher | Men's –100 kg | Khurramov (UZB) L 00–01 | did not advance | did not advance | did not advance | did not advance | did not advance | did not advance |
| Megan Fletcher | Women's –70 kg | Polleres (AUT) L 00–01 | did not advance | did not advance | did not advance | did not advance | did not advance | did not advance |

## Modern pentathlon

Two-time Olympian Natalya Coyle secured her selection in the women's event with an eighth-place finish and fourth among those eligible for Olympic qualification at the 2019 European Championships in Bath, England.
| Athlete | Event | Fencing (épée one touch) | Fencing (épée one touch) | Fencing (épée one touch) | Fencing (épée one touch) | Swimming (200 m freestyle) | Swimming (200 m freestyle) | Swimming (200 m freestyle) | Riding (show jumping) | Riding (show jumping) | Riding (show jumping) | Combined: shooting/running (10 m air pistol)/(3200 m) | Combined: shooting/running (10 m air pistol)/(3200 m) | Combined: shooting/running (10 m air pistol)/(3200 m) | Total points | Final rank |
| Athlete | Event | RR | BR | Rank | MP points | Time | Rank | MP points | Penalties | Rank | MP points | Time | Rank | MP Points | Total points | Final rank |
| Natalya Coyle | Women's | 23–12 | 1 | 3 | 239 | 2:13.88 | 13 | 283 | 66 | 28 | 234 | 13:08:51 | 28 | 512 | 1268 | 24 |

## Rowing

Ireland qualified five boats into the Olympic regatta, with the majority of crews confirming Olympic places for their boats at the 2019 FISA World Championships in Ottensheim, Austria and at the 2021 FISA Final Qualification Regatta in Lucerne, Switzerland.
A place in the women's lightweight double sculls boat was awarded to the Irish rowing team after their third-place finish at the FISA Final Qualification Regatta, having received a vacant place from the 2021 Pan American Qualification Regatta in Rio de Janeiro, Brazil.
The crew in the women's four, Aifric Keogh, Eimear Lambe, Fiona Murtagh and Emily Hegarty, won a bronze medal, Ireland's first medal of the 2020 Games and the nation's second ever rowing medal. In the men's lightweight double sculls, Paul O'Donovan and Fintan McCarthy won Ireland's first ever Olympic gold medal in rowing, which was also the nations's first Olympic gold by male athletes since boxer Michael Carruth in 1992.

### Men

| Athlete | Event | Heats | Heats | Repechage | Repechage | Semifinals | Semifinals | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank | Time | Rank |
| Ronan Byrne Philip Doyle | Double sculls | 6:14.40 | 4 R | 6:29.90 | 3 Q | 6:49.06 | 6 FB | 6:16.89 | 10 |
| Fintan McCarthy Paul O'Donovan | Lightweight double sculls | 6:23.74 | 1 SA/B | — | — | 6:05.33 WR | 1 FA | 6:06.43 | |

### Women

| Athlete | Event | Heats | Heats | Repechage | Repechage | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank | Time | Rank | Time | Rank |
| Sanita Pušpure | Single sculls | 7:46.08 | 1 QF | Bye | Bye | 7:58.30 | 1 SA/B | 7:34.40 | 5 FB | DNS | 12 |
| Aoife Casey Margaret Cremen | Lightweight double sculls | 7:17.67 | 5 R | 7:23.46 | 3 SA/B | — | — | 6:49.24 | 5 FB | 6:49.90 | 8 |
| Aileen Crowley Monika Dukarska | Pair | 7:23.71 | 4 R | 7:31.00 | 3 SA/B | — | — | 7:06.07 | 5 FB | 7:02.22 | 11 |
| Aifric Keogh Eimear Lambe Fiona Murtagh Emily Hegarty | Four | 6:28.94 | 2 FA | Bye | Bye | — | — | — | — | 6:20.48 | |
Qualification Legend: FA=Final A (medal); FB=Final B (non-medal); FC=Final C (non-medal); FD=Final D (non-medal); FE=Final E (non-medal); FF=Final F (non-medal); SA/B=Semifinals A/B; SC/D=Semifinals C/D; SE/F=Semifinals E/F; QF=Quarterfinals; R=Repechage

## Rugby sevens
### Summary

| Team | Event | Pool Stage | Pool Stage | Pool Stage | Pool Stage | Quarterfinal | Semifinal/Pl. | Final/Pl. | Final/Pl. |
| Team | Event | Opposition Score | Opposition Score | Opposition Score | Rank | Opposition Score | Opposition Score | Opposition Score | Rank |
| Ireland men's | Men's tournament | South Africa L 14–33 | United States L 17–19 | Kenya W 12–7 | 3 | did not advance | South Korea W 31–0 | Kenya L 0–22 | 10 |

### Men's tournament

Ireland national rugby sevens team qualified for the first time at the Olympics by winning the gold medal at the 2020 Final Olympic Qualification Tournament in Monaco, defeating the favorites France in the final 28–19.

#### Team roster

Ireland's 12-man squad plus one alternate was named on 6 July 2021.
Head coach: Anthony Eddy
| No. | Pos. | Player | Date of birth (age) | Events | Points |
| 1 | FW | Jack Kelly | (1997-10-26)26 October 1997 (aged 23) | 8 | 60 |
| 2 | FW | Adam Leavy | (1995-09-21)21 September 1995 (aged 25) | 8 | 15 |
| 3 | FW | Harry McNulty | (1993-03-05)5 March 1993 (aged 28) | 10 | 45 |
| 4 | FW | Foster Horan | (1992-11-03)3 November 1992 (aged 28) | 4 | 20 |
| 5 | FW | Ian Fitzpatrick | (1994-08-25)25 August 1994 (aged 26) | 3 | 20 |
| 6 | BK | Billy Dardis (c) | (1990-05-31)31 May 1990 (aged 31) | 10 | 164 |
| 7 | BK | Jordan Conroy | (1994-03-10)10 March 1994 (aged 27) | 9 | 225 |
| 8 | BK | Greg O'Shea | (1995-03-23)23 March 1995 (aged 26) | 8 | 25 |
| 9 | BK | Mark Roche | (1993-01-25)25 January 1993 (aged 28) | 8 | 81 |
| 10 | BK | Terry Kennedy | (1996-07-04)4 July 1996 (aged 25) | 9 | 120 |
| 11 | BK | Hugo Lennox | (1999-03-06)6 March 1999 (aged 22) | 8 | 27 |
| 12 | BK | Gavin Mullin | (1997-11-29)29 November 1997 (aged 23) | 0 | 0 |
| 13 | BK | Bryan Mollen | (1995-09-25)25 September 1995 (aged 25) | 8 | 30 |

#### Group play

| Pos | Teamvte | Pld | W | D | L | PF | PA | PD | Pts | Qualification |
| 1 | South Africa | 3 | 3 | 0 | 0 | 64 | 31 | +33 | 9 | Quarter-finals |
| 2 | United States | 3 | 2 | 0 | 1 | 50 | 48 | +2 | 7 | Quarter-finals |
| 3 | Ireland | 3 | 1 | 0 | 2 | 43 | 59 | −16 | 5 | |
| 4 | Kenya | 3 | 0 | 0 | 3 | 26 | 45 | −19 | 3 | |
* 26 July 2021 (2021-07-26) 11:00
| South Africa | 33–14 | Ireland |
| Try: Z. Davids 2' c Visser 6' c Geduld 8' c Dry 12' c Gans 13' m Con: S. Davids (4/5) 2', 6', 8', 12' | (Tokyo 2020) | Try: Mullin 7' c Kennedy 10' c Con: Dardis (2/2) 7', 10' |
* Tokyo Stadium, Tokyo Attendance: 0 Referee: Craig Evans (Wales)
* 26 July 2021 (2021-07-26) 18:30
| United States | 19–17 | Ireland |
| Try: Baker 1' c Hughes 3' m Tomasin 10' c Con: Hughes (2/3) 2', 10' | (Tokyo 2020) | Try: Lennox 7' m McNulty 8' m Horan 14' c Con: Dardis (0/2) Roche (1/1) 14' |
* Tokyo Stadium, Tokyo Attendance: 0 Referee: James Doleman (New Zealand)
* 27 July 2021 (2021-07-27) 11:00
| Kenya | 7–12 | Ireland |
| Try: Onyala 13' c Con: Taabu (1/1) 13' | (Tokyo 2020) | Try: Lennox 1' m McNulty 2' c Con: Dardis (1/2) 2' |
* Tokyo Stadium, Tokyo Attendance: 0 Referee: Jordan Way (Australia)

#### 9–12th place playoff

* 27 July 2021 (2021-07-27) 16:30
| Ireland | 31–0 | South Korea |
| Try: Roche 1' m Conroy (2) 2' m, 13' c Mullin (2) 11' c, 14' c Con: Roche (0/2) Dardis (3/3) 12', 13', 14' | (Tokyo 2020) | |
* Tokyo Stadium, Tokyo Attendance: 0 Referee: Francisco González (Uruguay)
* 28 July 2021 (2021-07-28) 9:30
| Ireland | 0–22 | Kenya |
| | (Tokyo 2020) | Try: Olindi 5' c Ojee 10' m Ambaka 12' m Taabu 14' m Con: Olindi (1/1) 5' Taabu (0/2) Amonde (0/1) |
* Tokyo Stadium, Tokyo Attendance: 0 Referee: Damián Schneider (Argentina)

## Sailing

Irish sailors qualified one boat in each of the following classes through the class-associated World Championships, and the continental regattas.
On 11 June 2020, the Irish Sailing Association decided to forgo the domestic selection trials for the women's Laser Radial class because of the worldwide pandemic. Instead, Rio 2016 silver medalist Annalise Murphy was officially nominated to the Irish roster for her third straight Games, after finishing twelfth, as the country's top-ranked sailor, at the class-associated Worlds in Melbourne, Australia four months earlier.
| Athlete | Event | Race | Race | Race | Race | Race | Race | Race | Race | Race | Race | Race | Race | Race | Net points | Final rank |
| Athlete | Event | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | M* | Net points | Final rank |
| Robert Dickson Sean Waddilove | Men's 49er | 1 | 12 | 11 | 13 | DSQ | DSQ | 8 | 18 | 8 | 3 | 17 | 1 | EL | 112 | 13 |
| Annalise Murphy | Women's Laser Radial | 35 | 12 | 24 | 37 | 9 | 10 | 1 | 2 | 30 | 40 | — | — | EL | 160 | 18 |
M = Medal race; EL = Eliminated – did not advance into the medal race; DSQ = Disqualified; 20 = worst race result is discarded

## Shooting

Ireland granted an invitation from ISSF to send four-time Olympian Derek Burnett in the men's trap to the Olympics, as long as the minimum qualifying score (MQS) was fulfilled by 6 June 2021.
| Athlete | Event | Qualification | Qualification | Final | Final |
| Athlete | Event | Points | Rank | Points | Rank |
| Derek Burnett | Men's trap | 118 | 26 | Did not advance | Did not advance |

## Swimming

Irish swimmers further achieved qualifying standards in the following events, up to a maximum of 2 swimmers in each event at the Olympic Qualifying Time (OQT), and potentially 1 at the Olympic Selection Time (OST):

### Men

| Athlete | Event | Heat | Heat | Semifinal | Semifinal | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank |
| Darragh Greene | 100 m breaststroke | 1:00.30 | 29 | Did not advance | Did not advance | Did not advance | Did not advance |
| Darragh Greene | 200 m breaststroke | 2:11.09 | 23 | Did not advance | Did not advance | Did not advance | Did not advance |
| Brendan Hyland | 200 m butterfly | 1:57.09 | 23 | Did not advance | Did not advance | Did not advance | Did not advance |
| Shane Ryan | 100 m backstroke | DNS | DNS | Did not advance | Did not advance | Did not advance | Did not advance |
| Shane Ryan | 100 m butterfly | 52.52 NR | =37 | Did not advance | Did not advance | Did not advance | Did not advance |
| Daniel Wiffen | 800 m freestyle | 7:51.65 NR | 14 | — | — | Did not advance | Did not advance |
| Daniel Wiffen | 1500 m freestyle | 15:07.69 NR | 20 | — | — | Did not advance | Did not advance |
| Brendan Hyland Finn McGeever Jack McMillan Shane Ryan | 4 × 200 m freestyle relay | 7:15.48 | 14 | — | — | Did not advance | Did not advance |

### Women

| Athlete | Event | Heat | Heat | Semifinal | Semifinal | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank |
| Danielle Hill | 50 m freestyle | 25.70 | 33 | Did not advance | Did not advance | Did not advance | Did not advance |
| Danielle Hill | 100 m backstroke | 1:00.86 | 25 | Did not advance | Did not advance | Did not advance | Did not advance |
| Mona McSharry | 100 m breaststroke | 1:06.39 | 9 Q | 1:06.59 | 8 Q | 1:06.94 | 8 |
| Mona McSharry | 200 m breaststroke | 2:25.08 NR | 20 | Did not advance | Did not advance | Did not advance | Did not advance |
| Ellen Walshe | 100 m butterfly | 59.35 | 24 | Did not advance | Did not advance | Did not advance | Did not advance |
| Ellen Walshe | 200 m individual medley | 2:13.34 | 19 | Did not advance | Did not advance | Did not advance | Did not advance |

## Taekwondo

Ireland enter one athlete into the taekwondo competition for the first time at the Games. With the Grand Slam winner already qualified through the WT Olympic Rankings, the automatic spot associated with the winner defaulted to the Olympic rankings list, from which the first five taekwondo practitioners had already won quota places. As the next highest-ranked eligible taekwondo practitioner, 2019 European silver medalist Jack Woolley thereby secured Ireland's first ever Olympic quota place, in the men's flyweight category (58 kg).
| Athlete | Event | Round of 16 | Quarterfinals | Semifinals | Repechage | Final / BM | Final / BM |
| Athlete | Event | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Rank |
| Jack Woolley | Men's −58 kg | Guzmán (ARG) L 19–22 | Did not advance | Did not advance | Did not advance | Did not advance | Did not advance |

## Triathlon
### Individual

| Athlete | Event | Swim (1.5 km) | Trans 1 | Bike (40 km) | Trans 2 | Run (10 km) | Total Time | Rank |
| Russell White | Men's | 18:35 | 0:44 | 57:40 | 0:36 | 37:05 | 1:54:40 | 48 |
| Carolyn Hayes | Women's | 20:10 | 0:43 | 1:06:04 | 0:30 | 34:43 | 2:02:10 | 23 |