The 1978-79 KNVB Cup 61st edition of the Dutch national football annual knockout tournament for the KNVB Cup. 46 teams contested, beginning on 19 August 1978 and ending at the final on 15 May 1979. Ajax – FC Twente ended a draw: 1–1 (aet). Instead of a penalty shootout, a replay was held on May 29. In that match, Ajax beat FC Twente 3–0 and won the cup for the eighth time. During the quarter and semi-finals of the tournament, two-legged matches were held.

Teams

First round

The matches of the first round were played on 19-20 August 1978. 1 Eerste Divisie; A Amateur teams

Second round

The matches of the second round were played on October 14, 15 and 25, 1978. The Eredivisie clubs entered the tournament this round. E Eredivisie

Round of 16

The matches were played on November 18 and 19, 1978.

Quarter finals

The quarter finals were played on March 14 and April 4, 1979.

Semi-finals

The semi-finals were played on April 18 and May 2, 1979.

Final

Replay

Ajax also won the Dutch Eredivisie championship, thereby taking the double. They would participate in the European Cup, so finalists Twente could play in the Cup Winners' Cup.