| Born |
30 May 1947 Hürth, Germany | ||
|---|---|---|---|
| Domestic | |||
| Years | League | Role | |
| 1976–1994 | 2. Bundesliga, Bundesliga | Referee | |
| 1978–1994 | Bundesliga | Referee | |
| International | |||
| Years | League | Role | |
| 1983–1993 | FIFA listed | Referee | |
Karl-Josef Assenmacher (born 30 May 1947) is a German former referee.