The qualifying rounds for the 2006–07 UEFA Champions League began on 11 July 2006. In total, there were three qualifying rounds which provided 16 clubs to join the group stage.

Teams

First qualifying round

The draw for this round was performed on 23 June 2006 in Nyon, Switzerland.

Seeding

Summary

<section begin=Q1 /> The first legs were played on 11 and 12 July 2006, with the second legs on 18 and 19 July.

Matches

Ekranas won 3–1 on aggregate. FH Hafnarfjörður won 4–3 on aggregate. Liepājas Metalurgs won 2–1 on aggregate. MyPa won 2–0 on aggregate. Cork City won 2–1 on aggregate. Sioni Bolnisi won 2–1 on aggregate. Rabotnički won 1–0 on aggregate. Široki Brijeg won 2–0 on aggregate. B36 Tórshavn won 5–2 on aggregate. Gorica won 5–3 on aggregate. Sheriff Tiraspol won 2–0 on aggregate.

Second qualifying round

The draw for this round was performed on 23 June 2006 in Nyon, Switzerland.

Seeding

Summary

<section begin=Q2 /> The first legs were played on 25 and 26 July 2006, with the second legs on 1 and 2 August.

Matches

Steaua București won 5–0 on aggregate. Levski Sofia won 4–0 on aggregate. Red Bull Salzburg won 3–2 on aggregate. Ružomberok won 3–2 on aggregate. Rabotnički won 5–2 on aggregate. Red Star Belgrade won 4–0 on aggregate. Fenerbahçe won 9–0 on aggregate. Mladá Boleslav won 5–3 on aggregate. ''1–1 on aggregate. Spartak Moscow won on the away goals rule.'' Dynamo Kyiv won 8–1 on aggregate. Legia Warsaw won 3–0 on aggregate. Copenhagen won 4–2 on aggregate. Dinamo Zagreb won 9–3 on aggregate. Heart of Midlothian won 3–0 on aggregate.

Third qualifying round

The draw for this round was performed on 28 July 2006 in Nyon, Switzerland.

Seeding

Summary

<section begin=Q3 /> The first legs were played on 8 and 9 August 2006, with the second legs on 22 and 23 August. The teams eliminated in this round qualified for the first round of the [UEFA Cup](https://bliptext.com/articles/uefa-cup-2006-07).

Matches

Spartak Moscow won 2–1 on aggregate. Shakhtar Donetsk won 4–2 on aggregate. Valencia won 3–1 on aggregate. Levski Sofia won 4–2 on aggregate. AEK Athens won 5–1 on aggregate. CSKA Moscow won 5–0 on aggregate. Milan won 3–1 on aggregate. Galatasaray won 6–3 on aggregate. Steaua București won 4–3 on aggregate. Benfica won 4–1 on aggregate. Arsenal won 5–1 on aggregate. Copenhagen won 3–2 on aggregate. ''1–1 on aggregate. Hamburger SV won on the away goals rule.'' Dynamo Kyiv won 5–3 on aggregate. Liverpool won 3–2 on aggregate. Lille won 4–0 on aggregate.