UEFA Champions League 2018-19 group stage

The 2018–19 UEFA Champions League group stage is scheduled to begin on 18 September and end on 12 December 2018. A total of 32 teams compete in the group stage to decide the 16 places in the knockout phase of the 2018–19 UEFA Champions League.

Draw
The draw for the group stage will be held on 30 August 2018 at the Grimaldi Forum in Monaco.

The 32 teams are drawn into eight groups of four, with the restriction that teams from the same association cannot be drawn against each other. For the draw, the teams are seeded into four pots based on the following principles (Regulations Article 13.06):
 * Pot 1 contains the Champions League title holders, the Europa League title holders, and the champions of the top six associations based on their 2017 UEFA country coefficients. If either the Champions League or Europa League title holders are one of the champions of the top six associations, the champions of the association ranked seventh (and possibly eighth) are also seeded into Pot 1.
 * Pot 2, 3 and 4 contains the remaining teams, seeded based on their 2018 UEFA club coefficients.

On 17 July 2014, the UEFA emergency panel ruled that Ukrainian and Russian clubs would not be drawn against each other "until further notice" due to the political unrest between the countries.

Moreover, the draw is controlled for teams from the same association in order to split the teams evenly into the two sets of four groups (A–D, E–H) for maximum television coverage. On each matchday, one set of four groups play their matches on Tuesday, while the other set of four groups play their matches on Wednesday, with the two sets of groups alternating between each matchday.

The fixtures are decided after the draw, using a computer draw not shown to public, with the following match sequence (Regulations Article 16.02):