2004 in men's road cycling
2004 in men's road cycling is about the 2004 men's bicycle races governed by the UCI.
World championships
The World Road championships were held in Verona, Italy.| Race | Date | Winner | Second | Third |
| World Championship Road Race | Oct 3 | ' | ||
| World Championship Time Trial | Sep 29 | ' |
Grand Tours
| Race | Date | Winner | Second | Third |
 Giro d'Italia | May 8 - May 30 | ' | ||
 Tour de France | Jul 3 - Jul 25 | ' | ||
 Vuelta a España | Sep 4 - Sep 26 |
UCI Coupe du Monde
| Race | Date | Winner | Second | Third |
| Milan–San Remo | March 3 | ' | ||
 Tour of Flanders / Tour des Flandres | April 4 | ' | ||
| Paris–Roubaix | April 11 | ' | ||
 Amstel Gold Race | Apr 18 | ' | ||
| Liège–Bastogne–Liège | Apr 25 | ' | ||
 HEW Cyclassics Cup-Hamburg | Aug 1 | ' | ||
| Clásica de San Sebastián | Aug 7 | ' | ||
 Züri-Metzgete | Aug 22 | ' | ||
| Paris–Tours | Oct 10 | ' | ||
| Giro di Lombardia | Oct 10 | ' |
2.HC Category Races
The prefix 2 indicates that these events are stage races.| Race | Date | Winner | Second | Third |
| Paris–Nice | Mar 7 - Mar 14 | ' | ||
| Tirreno–Adriatico | Mar 10 - Mar 16 | ' | ||
| Tour of the Basque Country | Apr 5 – Apr 9 | ' | ||
| Tour de Romandie | Apr 27 – May 2 | ' | ||
| Critérium du Dauphiné Libéré | Jun 6 – Jun 13 | ' | ||
| Tour de Suisse | Jun 12 - Jun 20 | ' | ||
| Volta a Catalunya | Jun 14 - Jun 20 |
1.HC Category Races
The prefix 1 indicates that these events are one-day races.| Race | Date | Winner | Second | Third |
| Gent–Wevelgem | Apr 7 | ' | ||
| La Flèche Wallonne | Apr 21 | ' | ||
| GP Ouest France-Plouay | Aug 29 | ' | ||
| Giro del Lazio | Sep 18 | ' |
2.1 Category Races
The prefix 2 indicates that these events are stage races.| Race | Date | Winner | Second | Third |
| Setmana Catalana de Ciclisme | Mar 22 - Mar 26 | ' | ||
| Critérium International | Mar 27 - Mar 28 | ' | ||
| Four Days of Dunkirk | May 5 - May 9 | ' | ||
| Tour du Languedoc-Roussillon | May 19 – May 23 | ' | ||
| Euskal Bizikleta | June 2 – Jun 6 | ' | ||
| Vuelta a Burgos | Aug 2 - Aug 5 | ' | ||
| Ronde van Nederland | Aug 24 - Aug 28 |
1.1 Category Races
The prefix 1 indicates that these events are one-day races.| Race | Date | Winner | Second | Third |
| Omloop Het Volk | Feb 28 | race was cancelled due to bad weather | ||
| E3 Prijs Vlaanderen | Mar 27 | ' | ||
| Scheldeprijs | Apr 14 | ' | ||
| Rund um den Henninger Turm | May 1 | ' | ||
| Classique des Alpes | Jun 6 | ' | ||
| Tre Valli Varesine | Aug 17 | ' | ||
| Grand Prix of Aargau Canton | Aug 29 | ' | ||
| Giro del Veneto | Aug 21 | ' | ||
| Coppa Placci | Sep 4 | ' | ||
| Paris–Brussels | Sep 11 | ' | ||
| Grand Prix de Fourmies | Sep 12 | ' | ||
| Grand Prix des Nations | Sep 19 | ' | ||
| Giro dell'Emilia | Sep 25 | ' | ||
| Milano–Torino | Oct 13 | ' | ||
| Giro del Piemonte | Oct 14 | ' |