33 Japanese male marathon runners

Arata Fujiwara is a Japanese marathon runner.

Masakazu Fujiwara, in Japanese 藤原正和, is Japanese long-distance runner, who specializes in the marathon. He has a personal best of 2:08:12 hours for the event. He was the 2013 Japanese champion in the marathon and won the 2010 Tokyo Marathon. He trains at Honda Sports team.

Taika Gon was a Korean long-distance runner. He competed in the marathon at the 1932 Olympics and finished in ninth place. He competed for Japan under his Japanese name as Korea was part of the Japanese Empire at the time. The name is based on the Japanese kanji pronunciation of his Korean hanja name.

Yasuo Ikenaka was a Japanese long-distance runner who is credited by the International Association of Athletics Federations for setting a world's best in the marathon on April 3, 1935. According to the IAAF, Ikenaka's time of 2:26:44 was over a minute faster than the previous record set by Fusashige Suzuki three days earlier.

Satoshi Irifune is a Japanese long-distance runner who specializes in the marathon.

Suehiro Ishikawa is a Japanese long-distance runner. He finished 47th in the senior men's race at the 2009 IAAF World Cross Country Championships. He placed seventh at the 2013 Berlin Marathon and fourth at the 2016 Lake Biwa Marathon, qualifying for the 2016 Olympics.

Kunimitsu Itō is a retired long-distance runner from Japan, who finished second in the 1981 edition of the Fukuoka Marathon on December 6, 1981.

Kenjiro Jitsui is a Japanese long-distance runner. He competed in the men's marathon at the 1996 Summer Olympics.

Daichi Kamino is a Japanese long-distance runner. In 2019, he won the Asian Marathon Championships held in Dongguan, China.

Shizo Kanakuri was a Japanese marathon runner and one of the early leaders of track and field athletics in Japan. He has been celebrated as the "father of marathon" in Japan.

Yuki Kawauchi is a Japanese marathon runner. He came to prominence after running the 2011 Tokyo Marathon in 2:08:37, finishing as the first Japanese citizen and third overall. He was known as the "citizen runner" given that he used to work full-time for the government of Saitama Prefecture and trained in his time off with his own expenses without any sponsorship. Kawauchi won the 2018 Boston Marathon. In 2020, he left his job in local government and became a full-time professional runner.

Kenji Kimihara is a retired Japanese long-distance runner. He competed in the marathon at the 1964, 1968 and 1972 Olympics and finished in eighth, second and fifth place, respectively. He won two gold medals in the marathon at the Asian Games in 1966 and 1970, and won the Boston Marathon in 1966.

Yoshiro Mifune is a retired Japanese long-distance runner who won a silver medal in the marathon at the 1970 Asian Games. He also won the Lake Biwa Marathon, Enschede Marathon (1967), Sapporo Half Marathon (1970) and Beppu-Ōita Marathon (1972).

Yahei Miura was a Japanese long-distance runner. He competed in the marathon at the 1920 and 1924 Summer Olympics.

Kōichi Morishita is a retired Japanese male long-distance runner. He competed for Japan at the 1992 Summer Olympics in Barcelona, Spain where he won the silver medal in the men's marathon event.

Zensaku Motegi was a Japanese long-distance runner. His name was also rendered Zensaku Mogi. He competed in the 10,000 metres and the marathon at the 1920 Summer Olympics.

Kentaro Nakamoto is a Japanese long-distance runner who competes in marathon races. He represented Japan in the marathon at the 2012 Summer Olympics and the 2011, 2013 and 2017 World Championships in Athletics, finishing in the top ten on all four occasions. His personal best for the distance is 2:08:35 hours.

Nam Sung-yong was a Korean Olympian who won a bronze medal in the marathon at the 1936 Summer Olympics, completing the run in 2 hours, 31 minutes, and 42 seconds.

Katsuo Nishida was a Japanese long-distance runner. He competed in the marathon at the 1952 Summer Olympics.

Atsushi Sato is a Japanese long-distance runner who competes in marathon races. He is the Asian record holder in the half marathon with his time of 60:25 minutes. His marathon best of 2:07:13 hours is the fourth fastest by a Japanese athlete. He is married to Miho Sato, who was a 2004 Japanese Olympian.

Ryōichi Sekiya is a Japanese ultramarathon and marathon runner from Sagamihara, Kanagawa. He is the current Asian record holder of the 24-hour run with the distance of 274.884 km (170.805 mi), which he achieved in 2007 at Soochow International Ultra-Marathon. He is a four-time IAU 24 Hour World Championship winner, which makes him the athlete with the most wins in the event.

Yuta Shitara is a Japanese long-distance runner. He competed in the 10,000 metres at the 2015 World Championships in Beijing finishing 23rd.

Tamao Shiwaku was a Japanese runner. He competed at the 1936 Olympics in the marathon but did not finish the race.

Sohn Kee-chung was an Olympic athlete and long-distance runner. He became the first ethnic Korean to win a medal at the Olympic Games, winning gold in the marathon at the 1936 Berlin Olympics. He was a Korean national, but he had to compete as a member of the Japanese delegation because Korea was under Japanese colonization at the time. Sohn set an Olympic record of 2 hours 29 minutes 19.2 seconds.

Fusashige Suzuki was a Japanese long-distance runner who is credited by the International Association of Athletics Federations for setting a world record in the marathon on March 31, 1935.

Toru Terasawa is a former Japanese long-distance runner who on February 17, 1963 set a world record in the marathon with a time of 2:15:16 at the Beppu Marathon. Terasawa placed second in the marathon at the 1964 Japanese Olympic trials and 15th at the 1964 Summer Olympics. Terasawa is also a two-time champion of the Fukuoka Marathon; he set a Japanese national record during his 1962 victory (2:16:18.4) and improved on it when he won in 1964 (2:14:48.2). At Fukuoka in 1966, he finished fifth (2:15:51.2) after colliding with Jim Hogan, the 1966 European marathon champion, and falling to the pavement just before the half way mark.

Kōkichi Tsuburaya was a Japanese athlete who competed mainly as a marathoner. Kokichi was also a 1st lieutenant in the Japan Ground Self-Defense Force.

Seiichiro Tsuda was a Japanese runner who won the 1500 metres event at the 1927 and 1930 Far Eastern Championship Games. He competed at the 1928 and 1932 Olympics in the marathon and finished in fifth and sixth place, respectively.

Yoshitaka Uchikawa is a Japanese long-distance runner. He competed in the marathon at the 1952 Summer Olympics.

Kanematsu Yamada was a Japanese long-distance runner. He competed in the 1928 Olympics marathon, finishing in fourth place.

Keizo Yamada was a long-distance runner from Japan, who won the 1956 edition of the Fukuoka Marathon, clocking 2:25:15 on December 9, 1956. He represented his native country at the 1952 Summer Olympics, finishing in 26th place (2:38:11) and won the 1953 Boston Marathon. He retired on July 18, 2009. He was born in Odate, Akita.

Hiroyuki Yamamoto is a Japanese professional long-distance runner.

Ryo Yamamoto is a Japanese long-distance runner. At the 2012 Summer Olympics, he competed in the Men's marathon, finishing in 40th place.