The 62nd edition of the KNVB Cup started on 1 September 1979. The final was played on 17 May 1980: Feyenoord beat Ajax 3–1 and won the cup for the fifth time. During the quarter and semi-finals, two-legged matches were held.
Teams
All 18 participants of the Eredivisie 1979-80, entering in the second round
^ abThe matches Ajax – Vitesse (3–1) and Roda JC – NEC Nijmegen (5–1), were also reported as Ajax – NEC Nijmegen (5–1) and Roda JC – Vitesse (3–1). See external link: RSSSF.