| Medal record | ||
|---|---|---|
| Men's orienteering | ||
| Representing |
||
| World Championships | ||
| 1970 Eisenach | Individual | |
| 1972 Jičín | Relay | |
Karl John is a Swiss orienteering competitor. He received an individual silver medal at the 1970 World Orienteering Championships, and a silver medal in relay in 1972.