| Olympic medal record | ||
|---|---|---|
| Representing |
||
| Men's sailing | ||
| Olympic Games | ||
| 1956 Melbourne | Dragon | |
Jonathan Janson (5 October 1930 – 29 November 2015) was a British competitive sailor and Olympic medalist. He was born in Chelsea. He won a bronze medal in the Dragon class at the 1956 Summer Olympics in Melbourne, together with Graham Mann and Ronald Backus.