1965–66 European Cup (handball)
First round
HB Dudelange, SC DHfK Leipzig, RK Zagreb, SMUC Marseille, Frisch Auf Göppingen, Dukla Prague, FH Hafnarfjörður, IK Fredensborg Oslo, Redbergslids IK, WKS Slask Wroclaw, KFUM Aarhus, Grasshoppers Zurich and Atlético Madrid had byes, and went so directly in the a second round.
2nd round
Quarterfinals
Semifinal
Final
The final was played in a match in Paris.