The 2006–07 Heineken Cup was the 12th edition of the European Heineken Cup rugby union club tournament. The pool draw took place on 21 June at Twickenham. The pool stages started on 20 October and concluded in January, going for six rounds. Following the quarter- and semi-finals, the final was played on 20 May before a near-capacity crowd at the 82,000-seat redeveloped Twickenham in London. London Wasps defeated Leicester Tigers 25–9, denying Tigers the domestic and European treble.

Draw

The top seeds from each of the participant nations (France, England, Scotland, Italy, Wales and Ireland) were all drawn into separate pools. These top seeds were; Benetton Treviso (pool 1), Edinburgh (pool 2), Sale Sharks (pool 3), Cardiff Blues (pool 4), Ulster (pool 5) and Biarritz (pool 6). Rules state that no two sides from the same country could be allocated the same pool. However, the seventh French club Castres could be drawn into any pool. The draw took place on 21 June. The greatest team representation is from France, which has seven teams participating in the tournament. England has the second largest representation with six teams. Ireland, Wales and Italy all have three teams, and Scotland have two.

Competition format

In the pool matches, teams receive: Ties between two teams are broken in the following order: The quarterfinals are seeded from 1 to 8. The six pool winners receive the top six seeds, based on their point totals. The top two second-place finishers are seeded 7 and 8. The seeds of the qualifying teams are in parentheses next to their names in the tables.

Pool stage

Full results can be found at 2006–07 Heineken Cup pool stage. All times are local to the match location.

Pool 1

Notes:

Pool 2

Pool 3

Pool 4

Notes:

Pool 5

Notes:

Pool 6

Notes:

Seeding and runners-up

Knockout stage

Quarter-finals

Semi-finals

Final