The 2023–24 UEFA Youth League knockout phase began on 6 February 2024 with the play-off round and concluded with the final on 22 April 2024 at Colovray Stadium in Nyon, Switzerland, to decide the champions of the 2023–24 UEFA Youth League.
[3] The knockout round play-offs were played over one leg on 6 and 7 February 2024.
[4] The draw was conducted on 9 February 2024 at 13:00 CET in the UEFA headquarters in Nyon.
[5] The draw was conducted on 9 February 2024 at 13:00 CET in the UEFA headquarters in Nyon.
[6] The draw was conducted on 9 February 2024 at 13:00 CET in the UEFA headquarters in Nyon.