The 1969–70 season of the European Cup Winners' Cup was the 10th edition of European football's secondary competition. Defending champions Slovan Bratislava were eliminated in the First Round by Dinamo Zagreb. English club Manchester City defeated Polish club Górnik Zabrze 2–1 in the final for their first and only Cup Winners' Cup title.

The UEFA Cup Winners' Cup was a European football club competition contested annually by the winners of domestic cup competitions. The cup was, chronologically, the second seasonal inter-European club competition organised by UEFA. The tournament ran for 39 seasons, with the final edition held in 1998–99, after which it was discontinued.