The 42 domestic champions of the UEFA member associations participated in the 1993–94 UEFA Champions League. It was the last before the expanded Group Stage competition.
The 1993-94 competition had a 2 tier entry point.
The 20 lower tier domestic champions played a home and away knockout round.
The 10 winners from the Preliminary Round are joined by the 22 higher tier domestic champions. They played a home and away knockout round.
The 16 winners from the 1st Round played a home and away knockout round.
|New teams|| Teams in |
| Teams eliminated |
|Preliminary Round|| ||20 new teams||>>> 10 teams|
|1st Round|| || 10 Preliminary winners |
22 new teams
>>> 16 teams
|2nd Round||16 1st Round winners||>>> 8 teams|
The top 2 teams from each group advanced to the semi-finals.
|Winner B v Runner-up A|
|AC Milan (CHAMPIONS)|
|Winner A v Runner-up B||Barcelona|