Samantha (left) and Kristie Mewis.
Elsa/Getty Images
  • Great Britain's Olympic delegation features nine sets of siblings.
  • Kristie and Sam Mewis are the first sisters to play for the US Olympic women's soccer team.
  • Twin sisters Sanne and Lieke Wevers are returning to the Netherlands' gymnastics team.
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Sisters Nelly and Jessica Korda are both headed to Tokyo as members of the US Olympic women's golf team.

Nelly and Jessica Korda.
Gregory Shamus/Getty Images

Nelly won the Women's PGA Championship and is ranked the No. 1 golfer in the world. Jessica is ranked at No. 13.

Sisters Makenzie and Aria Fischer will compete in their second Olympics together as part of the US women's water polo team.

Makenzie (left) and Aria Fischer (right) with former Olympian Janet Evans (center).
Kevork Djansezian/Getty Images

The Fischer sisters won gold at the Rio Olympics in 2016.

Kristie and Sam Mewis are the first sisters to ever be named to the US Olympic women's soccer team.

Samantha (left) and Kristie Mewis.
Elsa/Getty Images

The Mewis sisters grew up in Hanson, Massachusetts, and are both members of the US national women's soccer team.

""I feel like the only thing that could have made me making it better was that Kristie made it too," Sam told People magazine.

Kelly and Courtney Hurley will compete as individuals and members of the US fencing women's epee team.

Kelley (left) and Courtney Hurley.
Devin Manky/Getty Images

Kelley has competed at the Olympics four times and won both an individual and a team bronze medal. Courtney is a three-time Olympian and won a team bronze medal alongside her sister in 2012.

Erik and Kawika Shoji are returning to the US men's Olympic indoor volleyball team a second time.

Erik (left) and Kawika Shoji.
Sean M. Haffey/Getty Images

The team won a bronze medal at the Rio Olympics in 2016.

Henry and Jackson Leverett are joining Team USA in the men's 25 meter Rapid Fire Pistol shooting event.

Henry (left) and Jackson Leverett.

Twins Jennifer and Jessica Gadirova are both members of Great Britain's women's gymnastics team.

Jennifer (left) and Jessica Gadirova.
David Davies/PA Images via Getty Images

Tiffany Porter and Cindy Sember compete against each other in hurdling for Great Britain.

Tiffany Porter (left) and Cindy Sember.
Ashley Allen/Getty Images

The sisters also competed against each other in Rio, where Sember placed fourth and Porter placed seventh.

"We're competitors so my goal is always to beat her like everyone else, but I of course want her to do well, too — I'm so proud of her returning so well," Sember told BBC.

Jodie and Hannah Williams will race together in track and field events for Great Britain.

Jodie (left) and Hannah Williams.
Martin Rickett/PA Images via Getty Images

Both sisters will race in the 4x400 meter relay, and Jodie will also race in the women's 400 meter dash.

In the men's road race, identical twin cyclists Adam and Simon Yates will race for Great Britain.

Adam (left) and Simon Yates.
David Ramos/Getty Images

The easiest way to tell the identical twins apart is their teeth — Adam's front teeth are straight, while Simon's are angled. Adam also has a scar on his chin, while Adam does not.

Hockey players Harry and Hannah Martin will play on Great Britain's teams.

Karl Bridgeman/Getty Images for British Olympic Association

Hannah will compete in women's hockey, while two-time Olympian Harry will play on the men's team.

Mathilda and Charlotte Hodgkins-Byrne are both members of Great Britain's women's rowing team.

Mathilda (left) and Charlotte Hodgkins-Byrne (second from right).
Mattia Ozbot/Getty Images for British Rowing

The sisters will join rowing teammates Jess Leyden and Melissa Wilson at the Olympics.

British rowers Emily and Tom Ford will compete in the women's and men's eights.

Emily and Tom Ford.
John Walton/PA Images via Getty Images, Naomi Baker/Getty Images

"The Olympic Games brings everyone together and to know that we're going to be a part of that is something very special," Tom told ITV. "To be going with a sibling makes it even more special because it's something we've both dreamed of growing up."

Swimmers Max and Joe Litchfield will represent Great Britain.

Max (left) and Joe Litchfield.
Catherine Ivill/Getty Images

Max placed fourth in the 2016 400 meter medley. This will be Joe's first Olympics.

Twins Pat and Luke McCormack are members of Great Britain's boxing team.

Pat (left) and Luke McCormack.
Adam Davy/PA Images via Getty Images

Pat also competed in Rio in 2016.

"It's unbelievable – I went by myself last time, and it's time for the twins to take over Tokyo," he told The Northern Echo.

Swimmers Jayla and Troy Pina will both represent Cape Verde at the Tokyo Olympics.

Jayla and Troy Pina.
JOSEPH PREZIOSO/AFP via Getty Images

The Pina siblings live in Seekonk, Massachusetts, but will represent the African country of Cape Verde on its first-ever swimming team.

Pau and Marc Gasol will play for Spain's Olympic men's basketball team.

Pau (left) and Marc Gasol.
Edward A. Ornelas/Getty Images

The brothers are three-time Olympians, having won bronze in 2016 and silver in 2012 and 2008 with Spain's basketball team.

Anna-Maria and Eirini Alexandri are back for a second Olympics together, representing Austria in women's duets synchronized swimming.

Anna-Maria (left) and Eirini-Marina Alexandri.
Clive Rose/Getty Images

The Alexandri sisters placed 12th in Rio in 2016.

Twins Laura and Charlotte Tremble of France will compete in synchronized swimming.

Laura and Charlotte Tremble.
Eric Alonso/Getty Images

"It's amazing to swim with Laura because when we swim together, we are connected," Charlotte told FINA Aquatics World Magazine in 2019.

Croatia's Sime and Mihovil Fantela will sail together in the 49ers class.

Sime and Mihovil Fantela.
APA/AFP via Getty Images

The duo is nicknamed "Golden Brothers Fantela." Tokyo will be Sime's fourth Olympics, having won a gold medal in 2016. It will be younger brother Mihovil's first Olympics.

Bronte and Cate Campbell will represent Australia in swimming.

Bronte (left) and Cate Campbell.
Quinn Rooney/Getty Images

Bronte qualified to compete in two relays, Cate will swim in the 50 and 100-meter freestyle, and they'll both join team Australia for the 4x100 free relay.

Triathletes Ainsley and Trent Thorpe of New Zealand are both headed to Tokyo.

Trent (left) and Ainsley Thorpe.

Ainsley will compete in the women's triathlon and mixed relay event, and Trent is an alternate for Team New Zealand.

Twin sisters Sanne and Lieke Wevers are returning to the Olympics on the Netherlands' gymnastics team.

Sanne (left) and Lieke Wevers.
Tim Clayton/Corbis via Getty Images

Sanne won a gold medal in balance beam in Rio in 2016.

Ates and Deniz Cinar of Turkey will compete in sailing in the 470 class.

Ates (left) and Deniz Cinar.
WILLIAM WEST/AFP via Getty Images

The Cinar brothers also sailed together in the 2008, 2012, and 2016 Olympics.

Twins Dina and Arina Averina of Russia will both compete in rhythmic gymnastics.

Arina (left) and Dina Averina.
Natalia Fedosenko\TASS via Getty Images

This will be the Averina sisters' first Olympics.

"I like this small kind of indifference from Arina — when everything is bad, or if you are being scolded, you do not have to take it close to heart," Dina said of her sister in an interview with the Olympic Channel. "Do not be so upset, life does not end with this — it is necessary to listen carefully, to analyse it and to go work further. Nothing horrible happened."

Arina, in turn, praised Dina's resilience.

"When you think that everything is bad and already lost, it's necessary to find strength in yourself and prove first of all to yourself that everything is not lost and that you can," she said. "The main thing [is] to fight to the end."

Twins Asia and Alice D'Amato are both members of Italy's gymnastics team.

Asia (left) and Alice D'Amato.
Tom Weller/picture alliance via Getty Images

The D'Amato twins both won bronze as part of Team Italy's victory in the 2019 World Championships. Tokyo will be their first Olympics.

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