2008–09 in men's cyclo-cross covers the major Cyclo-cross competitions in the 2008–09 season, which runs from September 2008 until March 2009.
The competitions considered are the World Championships, National championships, the World Cup, the Superprestige and the Gazet van Antwerpen Trophy. Results of single day races of type C1 (the highest class) are also given.
World championships edit
| Date | Place | Winner | 2nd | 3rd |
| 1 February 2009 |  Hoogerheide |
 Niels Albert (BEL) |
 Zdeněk Štybar (CZE) |
Sven Nys (BEL)
|
National Championships edit
| Date | Nation | Winner | 2nd | 3rd |
| 11 October 2008 |  Canada |
Geoff Kabush | Mike Garrigan | Derrick St. John |
| 29 November 2008 |  Sweden |
Jens Westergren | Emil Lindgren | Fredrik Ericsson |
| 12 December 2008 |  United States |
Ryan Trebon | James Driscoll | Jonathan Page |
| 13 December 2008 |  Slovakia |
Milan Barenyi | Vaclav Metlicka | Maroš Kováč |
| 14 December 2008 |  |
Keiichi Tsujiura | Masanori Kosaka | Seigo Yamamoto |
| 10 January 2009 | Czech Republic |
Zdeněk Štybar | Radomír Šimůnek | Petr Dlask |
| 11 January 2009 | Belgium |
Sven Nys | Niels Albert | Kevin Pauwels |
| 11 January 2009 |  France |
Francis Mourey | Steve Chainel | Julien Belgy |
| 11 January 2009 |  |
Philipp Walsleben | René Birkenfeld | Paul Voss |
| 11 January 2009 | Netherlands |
Lars Boom | Thijs Al | Richard Groenendaal |
World Cup edit
| Date | Place | Winner | 2nd | 3rd |
| 19 October 2008 | Kalmthout |
Sven Nys (BEL) |
Niels Albert (BEL) |
Kevin Pauwels (BEL)
|
| 26 October 2008 | Tábor |
Niels Albert (BEL) |
Zdeněk Štybar (CZE) |
Martin Bína (CZE)
|
| 9 November 2008 | Pijnacker |
Lars Boom (NED) |
Niels Albert (BEL) |
Sven Nys (BEL)
|
| 29 November 2008 | Koksijde |
Erwin Vervecken (BEL) |
Sven Nys (BEL) |
Zdeněk Štybar (CZE)
|
| 7 December 2008 |  Igorre |
Sven Nys (BEL) |
Klaas Vantornout (BEL) |
Erwin Vervecken (BEL)
|
| 21 December 2008 | Nommay |
Lars Boom (NED) |
Sven Nys (BEL) |
Bart Wellens (BEL)
|
| 26 December 2008 | Hofstade |
Thijs Al (NED) |
Kevin Pauwels (BEL) |
Sven Vanthourenhout (BEL)
|
| 18 January 2009 | Roubaix |
Erwin Vervecken (BEL) |
Zdeněk Štybar (CZE) |
Sven Nys (BEL)
|
| 25 January 2009 |  Milan |
Sven Nys (BEL) |
Lars Boom (NED) |
Zdeněk Štybar (CZE)
|
Superprestige edit
| Date | Place | Winner | 2nd | 3rd |
| 12 October 2008 | Ruddervoorde |
Sven Nys (BEL) |
Klaas Vantornout (BEL) |
Niels Albert (BEL)
|
| 2 November 2008 | Veghel |
Niels Albert (BEL) |
Lars Boom (NED) |
Sven Nys (BEL)
|
| 16 November 2008 | Asper-Gavere |
Sven Nys (BEL) |
Bart Wellens (BEL) |
Klaas Vantornout (BEL)
|
| 23 November 2008 | Hamme-Zogge |
Sven Nys (BEL) |
Klaas Vantornout (BEL) |
Bart Wellens (BEL)
|
| 30 November 2008 | Gieten |
Klaas Vantornout (BEL) |
Bart Wellens (BEL) |
Sven Nys (BEL)
|
| 28 December 2008 | Diegem |
Zdeněk Štybar (CZE) |
Klaas Vantornout (BEL) |
Sven Nys (BEL)
|
| 8 February 2009 | Hoogstraten |
|||
| 12 February 2009 | Vorselaar |
Gazet van Antwerpen edit
| Date | Place | Winner | 2nd | 3rd |
| 1 November 2008 | Oudenaarde |
Sven Nys |
Lars Boom |
Niels Albert
|
| 11 November 2008 | Niel |
Lars Boom |
Niels Albert |
Sven Nys
|
| 22 November 2008 | Hasselt |
Bart Wellens |
Kevin Pauwels |
Rob Peeters
|
| 13 December 2008 | Essen |
Sven Nys |
Zdeněk Štybar |
Thijs Al
|
| 30 December 2008 | Loenhout |
Zdeněk Štybar |
Sven Nys |
Radomír Šimůnek
|
| 1 January 2009 | Baal |
Sven Nys |
Zdeněk Štybar |
Niels Albert
|
| 7 February 2009 | Lille |
Niels Albert |
Sven Nys |
Bart Wellens
|
| 22 February 2009 | Oostmalle |
Other Major (Class C1) 2008–09 Cyclo-cross races edit
| Date | Place | Winner | Second | Third |
| 24 September 2008 | Cross Vegas |
Ryan Trebon |
Timothy Johnson |
Adam Craig
|
| 5 October 2008 |  Badiquer Schmerikon |
Bart Aernouts |
Simon Zahner |
Florian Vogel
|
| 12 October 2008 | Bio Wheels / United Dairy Farmers UCI Harbin Park |
Jeremy Powers |
Jeremiah Bishop |
Troy Wells
|
| 18 October 2008 | Granogue Cross |
Ryan Trebon |
Jeremy Powers |
Timothy Johnson
|
| 2 November 2008 | Boulder Cup |
Timothy Johnson |
Todd Wells |
Ryan Trebon
|
| 8 November 2008 | Centennial Park Cross |
Jeremy Powers |
Timothy Johnson |
Nicholas Weighall
|
| 9 November 2008 | Centennial Park Cross |
Timothy Johnson |
Jeremy Powers |
Andy Jacques-Maynes
|
| 15 November 2008 | USGP of Cyclocross – Mercer Cup |
Timothy Johnson |
Todd Wells |
Ryan Trebon
|
| 16 November 2008 | USGP of Cyclocross – Mercer Cup |
Todd Wells |
Troy Wells |
Jeremy Powers
|
| 22 November 2008 | Whitmore's Landscaping Super Cross Cup 1 |
Ryan Trebon |
Jeremy Powers |
Todd Wells
|
| 23 November 2008 | Whitmore's Landscaping Super Cross Cup 2 |
Todd Wells |
James Driscoll |
Ryan Trebon
|
| 6 December 2008 | USGP of Cyclocross – Portland Cup |
Timothy Johnson |
Jeremy Powers |
Ryan Trebon
|
| 12 December 2008 | Vlaamse Druivenveldrit Overijse |
Kevin Pauwels |
Lars Boom |
Sven Nys
|