1998–99 UEFA Champions League knockout stage
The knockout stage of the 1998–99 UEFA Champions League began on 3 March 1999 and ended with the final at the Camp Nou in Barcelona on 26 May 1999. The eight teams from each of the six groups in the group stage competed in the knockout stage. For the quarter-finals, each group winner was randomly drawn against the runner-up from another group. The four quarter-final winners were then drawn together for the semi-finals, the winners of which contested the final.
Each quarter-final and semi-final was played over two legs, with each team playing one leg at home; the team that scored the most goals over the two legs qualified for the following round. In the event that the two teams scored the same number of goals over the two legs, the team that scored more goals away from home qualified for the next round; if both teams scored the same number of away goals, matches would go to extra time and then penalties if the teams could not be separated after extra time.
Bracket
| Quarter-finals | Semi-finals | Final | ||||||||||||
 Manchester United |
2 | 1 | 3 | |||||||||||
 Internazionale |
0 | 1 | 1 | |||||||||||
| Manchester United |
1 | 3 | 4 | |||||||||||
| Juventus |
1 | 2 | 3 | |||||||||||
| Juventus |
2 | 1 | 3 | |||||||||||
 Olympiacos |
1 | 1 | 2 | |||||||||||
| Manchester United |
||||||||||||||
 Bayern Munich |
||||||||||||||
 Real Madrid |
1 | 0 | 1 | |||||||||||
 Dynamo Kyiv |
1 | 2 | 3 | |||||||||||
| Dynamo Kyiv |
3 | 0 | 3 | |||||||||||
| Bayern Munich |
3 | 1 | 4 | |||||||||||
| Bayern Munich |
2 | 4 | 6 | |||||||||||
| Kaiserslautern |
0 | 0 | 0 | |||||||||||
Quarter-finals
| Team 1 | Agg. | Team 2 | 1st leg | 2nd leg |
|---|---|---|---|---|
| Real Madrid |
1–3 | Dynamo Kyiv |
1–1 | 0–2 |
| Manchester United |
3–1 | Internazionale |
2–0 | 1–1 |
| Juventus |
3–2 | Olympiacos |
2–1 | 1–1 |
| Bayern Munich |
6–0 | Kaiserslautern |
2–0 | 4–0 |
First leg
Second leg
Dynamo Kyiv won 3–1 on aggregate.
Manchester United won 3–1 on aggregate.
Juventus won 3–2 on aggregate.
17 March 1999 20:45 |
| Kaiserslautern |
0–4 | Bayern Munich |
|---|---|---|
| Report | Effenberg  9'Jancker 22'Rösler 39' (o.g.)Basler 56' |
Bayern Munich won 6–0 on aggregate.
Semi-finals
| Team 1 | Agg. | Team 2 | 1st leg | 2nd leg |
|---|---|---|---|---|
| Manchester United |
4–3 | Juventus |
1–1 | 3–2 |
| Dynamo Kyiv |
3–4 | Bayern Munich |
3–3 | 0–1 |
First leg
7 April 1999 21:45 |
| Dynamo Kyiv |
3–3 | Bayern Munich |
|---|---|---|
| Shevchenko 16', 43' Kosovsky 50' |
Report | Tarnat 45' Effenberg 78'Jancker 88' |
Second leg
Final
26 May 1999 20:45 |
| Manchester United |
2–1 | Bayern Munich |
|---|---|---|
| Sheringham 90+1' Solskjær 90+3' |
Report | Basler 6' |