Dame Denise Rosemarie Lewis is a British sports presenter and former track and field athlete, who specialised in the heptathlon. She won the gold medal in the heptathlon at the 2000 Sydney Olympics, was twice Commonwealth Games champion, was the 1998 European Champion and won World Championships silver medals in 1997 and 1999. She was the first European to win the Olympic heptathlon, though Europeans, including Briton Mary Peters, had won the Olympic pentathlon precursor event.
Michelle Smith de Bruin is an Irish lawyer and retired Olympic swimmer. She won three gold medals at the 1996 Summer Olympics in Atlanta, for the 400 m individual medley, 400 m freestyle and 200 m individual medley, and also won the bronze medal for the 200 m butterfly event. Smith's wins in Atlanta at a relatively advanced age for swimmers were marked by allegations of doping, which were never proven. Smith was, however, later banned for four years by FINA, the international swimming federation, for manipulation of an anti-doping sample, a decision upheld by the Court of Arbitration for Sport when Smith appealed. Smith never returned to competitive swimming and later worked as a barrister, practising under her married name of Michelle de Bruin. Despite the ban for manipulating samples, none of Smith's swimming achievements have been annulled, and she remains Ireland's most successful Olympian.
Nadine Elizabeth Louise Coyle is an Irish singer, songwriter, actress and model. In 2002, Coyle was selected as a member of the girl group Girls Aloud, with whom she has been successful in achieving a string of 20 consecutive UK top ten singles, two UK number one albums, five consecutive platinum selling studio albums and received nominations for five BRIT Awards, winning Best Single in 2009 for "The Promise".
Natalie Katherine Neidhart-Wilson is a Canadian-American professional wrestler and columnist. She is currently signed to WWE, where she performs on the Raw brand under the ring name Natalya. She is a two-time women's world champion, having won the Divas Championship and SmackDown Women's Championship once each. She is also a one-time WWE Women's Tag Team Champion with Tamina. She is a third generation professional wrestler, and is also the daughter of Hart Foundation member and Hall of Famer Jim Neidhart.
Dame Valerie Kasanita Adams is a retired New Zealand shot putter. She is a four-time World champion, four-time World Indoor champion, two-time Olympic, three-time Commonwealth Games champion and twice IAAF Continental Cup winner. She has a personal best throw of 21.24 metres outdoors and 20.98 m indoors. These marks are Oceanian, Commonwealth and New Zealand national records. She also holds the Oceanian junior record (18.93 m) and the Oceanian youth record (17.54 m), as well as the World Championships record, World Indoor Championships record and Commonwealth Games record.
Owen Columba Coyle is a professional football manager and former player who was more recently the manager of Scottish Championship club Queen's Park. He played as a striker for several clubs in England and Scotland, and made one appearance for the Republic of Ireland national team.
The Hospital and Free School of King Charles II, Oxmantown, also called The King's Hospital is a Church of Ireland co-educational independent day and boarding school situated in Palmerstown, Dublin, Ireland. It is on an 80-acre campus beside the River Liffey, called Brooklawn, named after the country houses situated on the site and in which the headmaster and his family reside. The school is also a member of the HMC Headmasters' and Headmistresses' Conference and the BSA.
Natalya Sutyagina is a butterfly swimmer from Russia, who won the gold medal in the 50 m butterfly at the 2004 European Aquatics Championships. She is trained by Vladimir Timofeev. Sutyagina competed at three consecutive Summer Olympics, starting in 2000.
Sudan sent a delegation to compete at the 2008 Summer Olympics in Beijing, China. Nine competitors, all from the Darfur region and northern Sudan, represented Sudan at the Beijing games.
Chad competed at the 2012 Summer Olympics in London, which was held from 27 July to 12 August 2012. This marked the nation's eleventh appearance at the Summer Olympics since its debut in the 1964 Summer Olympics. The Chadian delegation included track and field athlete Hinikissia Ndikert and judoka Carine Ngarlemdana. Ngarlemdana was the flag bearer for the opening ceremony and Ndikert was the flag bearer for the closing ceremony. Neither of Chad's athletes progressed beyond the first round of their events. Chad was one of only two countries to have a female-only team at the 2012 games.
Natalya Zasulskaya is a Russian former basketball player who competed in the 1988 Summer Olympics, in the 1992 Summer Olympics, and in the 2000 Summer Olympics. She was inducted into the FIBA Hall of Fame, in 2010.
Pernille Blume is a former Danish swimmer specializing in sprint freestyle events. She competed at the 2012 Summer Olympics. At the 2016 Summer Olympics she was the gold medalist in the women's 50 metre freestyle and won a bronze medal in the women's 4 × 100 metre medley relay where she swam the freestyle leg of the relay in both the prelims and the final. She also competed at the 2020 Summer Olympics, winning a bronze medal in the 50 metre freestyle.
Annalise Murphy is an Irish sailor who won a silver medal in the 2016 Summer Olympics. She competed at the 2020 Summer Olympics in Tokyo 2021, in Laser Radial.
Anastasiya Sergeyevna Aksenova is a Russian swimmer, who specialized in sprint freestyle events. She represented her nation Russia in a sprint freestyle swimming double at the 2008 Summer Olympics, and has also claimed multiple Russian championship titles and national records in both the individual and relay freestyle events. Aksenova was also a member of Suduroyar Svimjifelag in Vagur, Faroe Islands, under the tutelage of head coach Jon Bjarnason.
Natalie Eva Marie Nelson is an American actress, fashion designer, model, and professional wrestler. She is best known for her tenures in WWE, from 2013–2017 and 2020–2021, where she performed under the ring name Eva Marie.
Ireland competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's twenty-first appearance at the Summer Olympics, having attended every edition, either in its own right or as part of a Great Britain and Ireland team before 1924, with the exception of the 1936 Summer Olympics in Germany.
Natalya Karimova is a Russian cyclist. She competed at the 1996 Summer Olympics and the 2000 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 except the 1936 Summer Olympics in Germany.
Adelina Ibatullina is a Russian modern pentathlete.
During the closing ceremony of the 2020 Summer Olympics in Tokyo, the flag bearers for the 205 National Olympic Committee's (NOCs) and the IOC Refugee Olympic Team will enter the Olympic Stadium. The flags of each country were not necessarily carried by the same flag bearer as in the opening ceremony. Due to COVID-19 related protocols, athletes had to leave Japan within 48 hours from completion of their final event, leaving some countries without representation during the closing ceremony. Flags of the countries without athletes present were instead carried by volunteers.
Ireland 
