
Yoshihiro Akiyama , also known as Choo Sung-hoon (추성훈), is a Japanese mixed martial artist and judoka who won the gold medal at the 2001 Asian Championships for South Korea and for Japan at the 2002 Asian Games. A fourth-generation Japanese of Korean descent, he acquired Japanese nationality in 2001. He is the former K-1 HERO's Light Heavyweight Grand Prix Tournament Champion.

Kanako Urai is a Japanese professional wrestler currently signed to WWE, where she is a free agent performing under the ring name Asuka .

Noboru Kurakawa is a Japanese bodybuilder and professional wrestler better known by his ring name The Bodyguard . He is currently a freelancer, working most notably for All Japan Pro Wrestling (AJPW), where he is a four-time World Tag Team Champion with longtime partner Zeus as "The Big Guns". Kurakawa is also a former two-time Osaka Pro Wrestling Tag Team Champion with Zeus, and a former IWF Heavyweight Champion.

Command Bolshoi is a retired Japanese professional wrestler. She debuted for Japan Women's Pro-Wrestling (JWP) in November 1991 and worked for its follow-up promotion JWP Joshi Puroresu from 1992 until its folding in 2017, also serving as its final president. During her years in JWP, Bolshoi became a two-time JWP Openweight Champion, seven-time JWP Tag Team Champion and a four-time Daily Sports Women's Tag Team Champion. Bolshoi has worked under mask for a majority of her career and has managed to keep her real name and birthdate secret.

Sonoko Chiba is a Japanese football player. She plays for AS Harima Albion. She played for Japan national team.

Yoshino Enomoto is a Japanese ice hockey player for the Seibu Rabbits and the Japanese national team.

Kyotaro Fujimoto is a Japanese former professional boxer who competed from 2011 to 2019 and a kickboxer. He began competing again as a professional kickboxer in 2021.

Mika Kurihara Fujitaka is a Japanese basketball player. She represented Japan in the basketball competition at the 2016 Summer Olympics.

Kōji Gushiken is a former Olympic gymnast for Japan at the 1984 Summer Olympics in Los Angeles, California, where he won a total number of five medals, including two gold. He broke an ankle in May 1985 which prevented him from training for 3 months and hindered his performances at the 1985 World Championships. Gushiken announced his retirement at the 1985 Chūnichi Cup. He currently coaches other Olympic contenders.

Yui Hamamoto is a Japanese table tennis player. Her father is Japanese, and her mother is a table tennis player from China.

Hideo Hashimoto is a Japanese football player. He plays for FC Imabari.

Takuya Hashimoto is a Japanese professional basketball player for Osaka Evessa of the B.League in Japan.He played college basketball for Ashiya University. The Japanese Olympic Committee penalized Hashimoto for buying sex in Jakarta and sent him back home on August 20, 2018. He had been suspended from official competition for one year.
Hideo Takayama was a Japanese professional wrestler, better known under the ring name BADBOY Hido or simply Hido . He is best known for his time with hardcore wrestling federations Big Japan Pro Wrestling (BJW), Independent Wrestling Association Mid-South (IWA-MS), Frontier Martial-Arts Wrestling (FMW) and Wrestling International New Generations (W*ING).

Yusuke Igawa is a former Japanese football player who last played for Hong Kong Premier League club Eastern. He is currently the head coach of Hong Kong Third Division club Lansbury.

Etsuko Inada was a Japanese figure skater who mostly competed in singles. She was a seven-time Japanese national champion and represented Japan at the 1936 Winter Olympics at the age of 12.

Ryosuke Irie is a Japanese competitive swimmer who competes in backstroke events. He is a Kindai University student in Osaka.

Daiki Kameda is a Japanese former professional boxer who competed from 2006 to 2015. He is a two-weight world champion, having held the WBA flyweight title from 2010 to 2011, and the IBF super-flyweight title from 2013 to 2014. His brothers, Kōki and Tomoki, are also professional boxers.

Kōki Kameda is a Japanese former professional boxer who competed from 2003 to 2015. He is a three-weight world champion, having held the WBA light-flyweight title from 2006 to 2007, the WBC and lineal flyweight titles from 2009 to 2010, and the WBA (Regular) bantamweight title twice between 2010 and 2013. His younger brothers, Daiki and Tomoki, are also professional boxers.

Tomoki Kameda is a Japanese professional boxer. He is a former WBO bantamweight champion, having held the title from 2013 to 2014, and former WBC super bantamweight title challenger, having fought for the title in 2019.

Ayumi Kawasaki is a Japanese professional vert skater. She is the youngest person to ever medal in aggressive inline skating at the X Games, claiming bronze in the women's vert competition at the 1997 Summer X Games when she was twelve years old.

Kim Chae-hwa is a South Korean former competitive figure skater. She is the 2007 South Korean national champion. Her best result at an ISU Championship was seventh at the 2006 World Junior Championships.

Kiichi Kunimoto is a Japanese professional mixed martial artist currently competing in the welterweight division. A professional competitor since 2006, he has also competed for the RIZIN, UFC, Bellator, and Pancrase.

Tadasuke Makino is a Japanese racing driver. He has competed in a range of motorsport disciplines, including Super GT and European Formula 3. In 2018, Makino joined the FIA Formula 2 Championship with the series' defending champions Russian Time. Currently, Makino is in Japan, competing in Super Formula and Super GT.

Mizuki Matsuda is a Japanese long distance runner. She competed in the women's 10,000 metres at the 2017 World Championships in Athletics.

Toshihide Matsui is a professional Japanese tennis player. On 12 June 2006, he reached his highest ATP singles ranking of 261 and, on 7 May 2018, achieved his highest doubles ranking of 130.

Miyawaki is a Japanese professional wrestler, best known for his work in the Kaientai Dojo and Osaka Pro Wrestling promotions. He has also wrestled in the United States for Chikara and Pro Wrestling Guerrilla (PWG).
Takuya Murayama is a Japanese footballer who plays as a right winger for Israeli side Hapoel Acre of the Liga Leumit.

Aiko Nakamura , is a Japanese former professional tennis player. In July 2008, she was the second highest WTA-ranked Japanese singles tennis player, at No. 107, after Ai Sugiyama.
Daisuke Ohata is a former Japanese rugby union player. He usually played on the wing, and sometimes at centre, for the Japanese national team. He made his name internationally as a speedy ace in the World Rugby Sevens Series, and went on to become a regular member of the national team. He first played for Japan on November 9, 1996 and scored three tries that day. He is the leading rugby union test try scorer of all time. In November 2016, Ohata was inducted into the World Rugby Hall of Fame at the opening ceremony for the Hall's first physical location in Rugby, Warwickshire.

Kotaro Omori is a Japanese football player who currently plays for J2 League side Júbilo Iwata.

Naomi Osaka is a Japanese professional tennis player. She has been ranked No. 1 by the Women's Tennis Association (WTA) and is the first Asian player to hold the top ranking in singles as well the first player from Japan — man or woman — to reach No. 1. She is a four-time Grand Slam singles champion, and is the reigning champion at the Australian Open. Her seven titles on the WTA Tour also include two at the Premier Mandatory level. At the 2018 US Open and the 2019 Australian Open, Osaka won her first two Grand Slam singles titles in back-to-back Grand Slam tournaments, and is the first player to achieve this feat since Jennifer Capriati in 2001. She also became the first woman to win successive Grand Slam singles titles since Serena Williams in 2015.

Ryoji Sai is a Japanese professional wrestler, mixed martial artist and promoter who currently owns and operates Pro Wrestling Land's End, where he is a former All Asia Heavyweight Champion. He is best known for working for Pro Wrestling Zero1, where he is a former two-time World Heavyweight Champion.

Nobuo Satō is a Japanese figure skater and coach. He is a ten-time Japanese national champion. He represented Japan at the 1960 Winter Olympics, where he placed 14th, and at the 1964 Winter Olympics, where he placed 8th. His best finish at the World Championships was 4th in 1965.

Daichi Sawano is a Japanese pole vaulter.

Daisuke Sekimoto is a Japanese professional wrestler, currently signed to Big Japan Pro Wrestling in the Strong BJ division. He is also known for his appearances in Pro Wrestling Zero1-Max. He is a three-time BJW World Strong Heavyweight Champion, while also being a former one-time NWA Pan-Pacific Premium Heavyweight Champion, one-time wXw Unified World Wrestling Champion and a two-time Zero1 World Heavyweight Champion. Other major singles championships include the BJW Heavyweight Championship, the KO-D Openweight Championship and the Strongest-K Championship. Also a successful tag team wrestler, he has held the AJPW World Tag Team Championship three times, the All Asia Tag Team Championship two times, the BJW Tag Team Championship twelve times and the KO-D Tag Team Championship two times with his most successful tag team combination being with Yuji Okabayashi.

Kiyou Shimizu is a Japanese karateka competing in the women's kata event. She won the silver medal in the women's kata event at the 2020 Summer Olympics in Tokyo, Japan. She is also a two-time gold medalist at the World Karate Championships and a two-time gold medalist at the Asian Games.

Kenyu Sugimoto is a Japanese football player. He currently plays for Júbilo Iwata on loan from Urawa Red Diamonds.

Konosuke Takeshita is a Japanese professional wrestler, who has worked for DDT Pro-Wrestling (DDT) since his debut in August 2012. Dubbed the "Future of DDT", Takeshita was named the Rookie of the Year by Tokyo Sports in 2013. He is the youngest KO-D Openweight Champion in history, having won the title on his 21st birthday, and has also held the KO-D Tag Team Championship, the KO-D 6-Man Tag Team Championship and the Ironman Heavymetalweight Championship.

Kensho Obayashi is a Japanese bodybuilder and professional wrestler better known by his ring name Zeus . He is currently signed to All Japan Pro Wrestling, where he is a former AJPW Triple Crown Heavyweight Champion and a former four-time World Tag Team Champion with Bodyguard.
