|2019–20 European Rugby Champions Cup|
|Tournament format(s)||Round-robin and knockout|
|Date||15 November 2019 – 23 May 2020|
|Venue||Stade de Marseille, Marseille|
The 2019–20 European Rugby Champions Cup (known as the Heineken Champions Cup for sponsorship reasons) is the sixth season of the European Rugby Champions Cup, the annual club rugby union competition run by European Professional Club Rugby (ECPR) for teams from the top six nations in European rugby. It will be the 25th season of pan-European professional club rugby competition.
Twenty clubs from the three major European domestic and regional leagues compete in the Champions Cup. Nineteen of these qualify directly as a result of their league performance. The final place is awarded in the following order:
The distribution of teams is:
To date, the following teams have qualified for the tournament.
|Gallagher Premiership||Top 14||Guinness Pro14|
The twenty competing teams are seeded and split into four tiers, each containing five teams.
For the purpose of creating the tiers, clubs are ranked based on their domestic league performances and on their qualification for the knockout phases of their championships, so a losing quarter-finalist in the Top 14 would be seeded below a losing semi-finalist, even if they finished above them in the regular season.
|2||Clermont||Exeter Chiefs||Glasgow Warriors|
|4||La Rochelle||Northampton Saints||Ulster|
Based on these seedings, teams are placed into one of the four tiers, with the top-seeded clubs being put in Tier 1. The nature of the tier system means that a draw is needed to allocate two of the three second-seed clubs to Tier 1. The fourth-seed team from the same domestic league as the second-seed team which was put in Tier 2 will also be placed in Tier 2. Brackets show each team's seeding and their league. e.g. 1 Top 14 indicates the team was the top seed from the Top 14.
|Tier 1||Saracens (1 Prem)||Leinster (1 Pro14)||Toulouse (1 Top 14)||Exeter Chiefs (2 Prem)||Clermont (2 Top 14)|
|Tier 2||Glasgow Warriors (2 Pro14)||Gloucester (3 Prem)||Munster (3 Pro14)||Lyon (3 Top 14)||Ulster (4 Pro14)|
|Tier 3||Northampton Saints (4 Prem)||La Rochelle (4 Top 14)||Harlequins (5 Prem)||Connacht (5 Pro14)||Racing (5 Top 14)|
|Tier 4||Bath (6 Prem)||Benetton (6 Pro14)||Montpellier (6 Top 14)||Ospreys (7 Pro14)||Sale Sharks (CC)|
The following restrictions will apply to the draw:
Teams in the same pool play each other twice, at home and away, in the group stage that begins on the weekend of 15–17 November 2019, and continues through to 17–19 January 2020. The five pool winners and three best runners-up progress to the quarter finals.
Teams are awarded group points based on match performances. Four points are awarded for a win, two points for a draw, one attacking bonus point for scoring four or more tries in a match and one defensive bonus point for losing a match by seven points or fewer.
In the event of a tie between two or more teams, the following tie-breakers are used, as directed by EPCR:
|Winner of each pool, advance to quarter-finals.|
|Three second-place teams with the highest number of points advance to quarter-finals.|