2023–24 Luxembourg Cup

The 2023–24 Luxembourg Cup, also known as Loterie Nationale Coupe de Luxembourg, for sponsorship reasons, was the 99th year of the football knockout tournament in Luxembourg. The winners qualified for the 2024–25 Conference League second qualifying round.

Progrès Niederkorn won the cup on 9 May 2024 (their fifth Luxembourg Cup win), defeating Swift Hesperange 3–1 on penalties after a 1–1 draw.

Preliminary round
!colspan="3" align="center"| 6 September 2023


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First round
!colspan="3" align="center"| 9 September 2023

!colspan="3" align="center"| 10 September 2023


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Second round
!colspan="3" align="center"| 30 September 2023

!colspan="3" align="center"| 1 October 2023


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Round of 32
!colspan="3" align="center"| 28 October 2023

!colspan="3" align="center"| 29 October 2023

!colspan="3" align="center"| 8 November 2023


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Round of 16
!colspan="3" align="center"| 3 April 2024


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Quarter-finals
The eight round of 16 winners entered the quarter-finals.

Semi-finals
The four quarter-final winners entered the semi-finals.

Final
The final was held between the two semi-final winners.