| Venue: | Montjuich, Barcelona, Spain |
| Date: | 2 September 1973 |
| Previous: | Gap 1972 |
| Next: | Montreal 1974 |
The 1973 UCI Road World Championships took place on 2 September 1973 in Montjuich, Barcelona, Spain, with four events contested. Italian Felice Gimondi and Belgian Nicole Vandenbroeck took the individual open championships, while Poland's Ryszard Szurkowski won the men's amateur road race and helped win the men's team time trial.
| Race: | Gold: | Time | Silver: | Time | Bronze : | Time | |
| Men | |||||||
| Men's road race | Felice Gimondi | 6 h 31 min 26s | Freddy Maertens | m.t. | Luis Ocaña | m.t. | |
| Amateurs' road race | Ryszard Szurkowski | - | Stanisław Szozda | - | Bernard Bourreau | - | |
| Team time trial | – | – | - | ||||
| Women | |||||||
| Women's road race | Nicole Vandenbroeck | - | Keetie van Oosten-Hage | - | Valentina Rebrovskaja | - | |