The 2022–23 EHF Champions League was the 63rd edition of Europe's premier club handball tournament and the 30th edition under the current EHF Champions League format. It ran from 14 September 2022 to 18 June 2023.
The tournament used the same format as the previous two seasons. The competition began with a group stage featuring sixteen teams divided into two groups. Matches were played in a double round-robin system with home-and-away fixtures, fourteen in total for each team. In Groups A and B, the top two teams automatically qualified for the quarter-finals, with teams ranked 3rd to 6th entered the playoff round.
The knockout stage included four rounds: the playoffs, quarter-finals, and a final-four tournament comprising two semifinals and the final. In the playoffs, eight teams were paired against each other in two-legged home-and-away matches (third-placed in group A plays sixth-placed group B; fourth-placed group A plays fifth-placed group B, etc.). The four aggregate winners of the playoffs advanced to the quarterfinals, joining the top-two teams of Groups A and B. The eight quarterfinalist teams were paired against each other in two-legged home-and-away matches, with the four aggregate winners qualifying to the final-four tournament.
In the final four tournament, the semifinals and the final were played as single matches at a pre-selected host venue. For this tournament, it was the Lanxess Arena.
The draw for the group stage was held on 1 July 2022.[5][7] The 16 teams were drawn into four groups of four. From each pot, two teams were drawn into Group A and the other two in Group B. Teams from the same national association will not drawn into the same group.[8]
A total of 11 national associations were represented in the group stage.