The 1993–94 UEFA Champions League knockout stage began on 27 April with the semi-finals and ended on 18 May 1994 with the final at the Olympic Stadium in Athens, Greece, to decide the champions of the 1993–94 UEFA Champions League.
A total of four teams competed in the knockout stage.
Each tie in the knockout stage was played in a single match.
If the score was level at the end of normal time, extra time would be played, followed by a penalty shoot-out if the score was still level.
The final was played on 18 May 1994 at the Olympic Stadium in Athens.