|Birth name||Johan Wahjudi|
|Born||10 February 1953|
Johan Wahjudi (Chinese: 洪耀龍) is a former Chinese-Indonesian badminton player. Though he played some singles at the international level early in his career, he soon became a doubles specialist noted for his alert and consistent play alongside his more mercurial partner Tjun Tjun.
They also won 6 All England Open Badminton Championships between 1974 and 1980  during which time their losses were rare and they were clearly the world's number one team. Wahjudi played on Indonesia's world champion Thomas Cup (men's international) teams of 1976 and 1979 winning all of his matches in partnership with Tjun Tjun.
|1||Men's doubles||1977||Malmo, SWE|
|1||Men's doubles||1974||Tehran, IRI|
|1||Men's doubles||1972, 1973, 1974||Denmark Open|
|1||Men's doubles||1974, 1975, 1977, 1978, 1979, 1980||All England|
|1972||Singapore Open||Regina Masli|| Chirasak Champakao
Liem Siew Choo
- Pat Davis, The Guinness Book of Badminton (Enfield, Middlesex, England: Guinness Superlatives Ltd., 1983) 109.
- Davis, 107.
- Davis, 126, 128.
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