| Tourney Name: | CERS Cup |
| Year: | 2008–09 |
| Dates: | 18 October 2008 – 19 April 2009 |
| Num Teams: | 27 |
| Associations: | 8 |
| Champion Other: |  Mataró |
| Count: | 3 |
| Second Other: | Lloret |
| Prevseason: | 2007–08 |
| Nextseason: | 2009–10 |
The 2008–09 CERS Cup was the 29th season of the CERS Cup, Europe's second club roller hockey competition organized by CERH. 27 teams from eight national associations qualified for the competition as a result of their respective national league placing in the previous season. Following a preliminary phase and two knockout rounds, Mataró won the tournament.
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The knockout stage consisted in double-legged series for the round of 16 and the quarterfinals, where the four winners would join the Final Four, that was played in Lloret de Mar.