2023–24 EHF Champions League group stage

The 2023–24 EHF Champions League group stage was played between 13 September 2023 and 7 March 2024 to determine the twelve teams advancing to the knockout stage of the 2023–24 EHF Champions League.

Draw
The draw was held on 27 June 2023 in Vienna, Austria.

Seeding
The composition of the seeding pots for the group stage draw was announced on 20 June 2023. From Pot 1, three teams were drawn into Group A and the other two in Group B. From Pot 2, each team from the same national association (Germany, Poland, France, Denmark and Hungary) was drawn in the opposite groups, so they would not drawn into the same group. Groups A and B were completed by either two or three teams from Pot 3.

Format
In each group, teams played against each other in a double round-robin format, with home and away matches.

Tiebreakers
In the group stage, teams were ranked according to points (2 points for a win, 1 point for a draw, 0 points for a loss). After completion of the group stage, if two or more teams have the same number of points, the ranking was determined as follows:

If the ranking of one of these teams is determined, the above criteria are consecutively followed until the ranking of all teams is determined. If no ranking can be determined, a decision shall be obtained by EHF through drawing of lots.
 * 1) Highest number of points in matches between the teams directly involved;
 * 2) Superior goal difference in matches between the teams directly involved;
 * 3) Highest number of goals scored in matches between the teams directly involved;
 * 4) Superior goal difference in all matches of the group;
 * 5) Highest number of plus goals in all matches of the group;

Groups
The matchdays were 13–14 September, 20–21 September, 27–28 September, 11–12 October, 18–19 October, 25–26 October, 15–16 November, 22–23 November, 29–30 November, 6–7 December 2023, 14–15 February, 21–22 February, 28–29 February, and 6–7 March 2024.

Times until 28 October 2023 are UTC+2, from 29 October 2023 on UTC+1.