The 2018–19 Luxembourg Cup was the 94th edition of the football knockout tournament in the country.
[1] Racing FC were the defending champions after winning the previous season's Luxembourg Cup final over Hostert on penalties.
Sporting Bertrange were the lowest ranked team left in the competition, competing in the third tier (1.
The draw for the quarter-final was held 13 November 2018 with the four matches played on 3 April 2019.
[9] Two teams from the second tier (Luxembourg Division of Honour) were still in the competition: Union Mertert-Wasserbillig and Blue Boys Muhlenbach.