Masamori Tokuyama
Zainichi Korean boxer
洪 昌守 · 徳山昌守 · 德山昌守 · 홍창수
- Born
- 17 September 1974, Ota
- Citizenship
- North Korea, Japan
- Sport
- boxing
- Discipline
- super flyweight
- Occupation
- boxer
Masamori Tokuyama (徳山 昌守, Tokuyama Masamori; born Hong Chang-soo; Korean: 홍창수; Hanja: 洪昌守, on September 17, 1974) is a Japanese-born Korean former professional boxer who competed from 1994 to 2006. He held the WBC super-flyweight title twice between 2000 and 2006.
Because of his affiliation with North Korea and his experience traveling to the country, he had been banned from entering South Korea and the United States. However, he changed his nationality to South Korean in February 2007. He studied Korean language at Yonsei University in South Korea in March 2007.
Awards and honours
- WBC World Super Flyweight Champion
External links
Facts from Wikidata Q483611 (CC0); quoted introduction from English Wikipedia (CC BY-SA 4.0). Data retrieved 2026-10-22.
Data: Wikidata (CC0 1.0); Wikipedia (English) (CC BY-SA 4.0). Retrieved 2026-10-22.