The 2008–09 Luxembourg Cup is the eighty-fourth season of Luxembourg's annual cup competition. It began on 3 September 2008 with Round 1 and ended on 30 May 2009 with the Final held at a neutral venue. The winners of the competition will qualify for the second qualifying round of the 2009–10 UEFA Europa League. CS Grevenmacher are the defending champions.
Round 1
Fifty-two teams from Division 2 (IV) and Division 3 (V) entered in this round. Forty of them competed in matches, with the other twelve teams were awarded a bye. The games were played on 3 September 2008.
Bye: US Boevange, CS Bourscheid, FC Brouch, Vinesca Ehnen, Excelsior Grevels, FC Kopstal, AS Luxembourg-Porto, Marisca Mersch, US Moutfort, US Reisdorf, Résidence Walferdange, Yellow Boys Weiler
Round 2
The winners of Round 1 competed in this round. The games were played on 28 September 2008.
The winners of Round 2 competed in this round, as well as twenty-eight teams from Division 1 (III), which entered the competition in this round. The games were played on 2 November 2008.
Twenty-two winners of Round 3 competed in this round, as well as fourteen teams from the Division of Honour (II), which entered the competition in this round. The games were played on 7 December 2008.
Eighteen winners of Round 4 competed in this round, as well as fourteen teams from the National Division, which entered the competition in this round. The games were played on 21 February 2009.
