| Hatsuo Royama | |
|---|---|
| Born | Noh Cho-woong March 31, 1948 Gyōda, Saitama (Born in  Japan) |
| Residence | Saitama, Japan |
| Style | Kyokushin, Yiquan, Kickboxing |
| Teacher(s) | Mas Oyama, Hideo Nakamura (Kang Chang-Soo), Kenichi Sawai |
| Rank | 9th dan Kyokushin-kan Karate[1] |
Hatsuo Royama (盧山 初雄, Royama Hatsuo, born 31 March 1948) also known by his Korean name of Noh Cho Woong (Korean: 노초웅; Hanja: 盧初雄) is a master of Kyokushin Karate and was current Kancho (Director) of the Kyokushin-kan International Organization Honbu, one faction of the International Karate Organization (IKO) founded by Mas Oyama (1923–1994) until April 2022.[2]