350cc World Road Racing Champions
1949 - 1969
| Year | Rider | Country | Make |
| 1949 | Freddie Frith | Britain | Velocette |
| 1950 | Bob Foster | Britain | Velocette |
| 1951 | Geoff Duke | Britain | Norton |
| 1952 | Geoff Duke | Britain | Norton |
| 1953 | Fergus Andarson | Britain | Guzzi |
| 1954 | Fergus Anderson | Britain | Guzzi |
| 1955 | Bill Lomas | Britain | Guzzi |
| 1956 | Bill Lomas | Britain | Guzzi |
| 1957 | Keith Campbell | Australia | Guzzi |
| 1958 | John Surtees | Britain | MV |
| 1959 | John Surtees | Britain | MV |
| 1960 | John Surtees | Britain | MV |
| 1961 | Gary Hocking | Rhodesia | MV |
| 1962 | Jim Redman | Rhodesia | Honda |
| 1963 | Jim Redman | Rhodesia | Honda |
| 1964 | Jim Redman | Rhodesia | Honda |
| 1965 | Jim Redman | Rhodesia | Honda |
| 1966 | Mike Hailwood | Britain | Honda |
| 1967 | Mike Hailwood | Britain | Honda |
| 1968 | Giacomo Agostini | Italy | MV |
| 1969 | Giacomo Agostini | Italy | MV |