The 1973-74 KNVB Cup was the 56th edition of the Dutch national football annual knockout tournament for the KNVB Cup.
46 teams contested, beginning on 26 September 1973 and ending at the final on 1 May 1974.
NAC unsuccessfully defended on 1 May 1974 in De Kuip, Rotterdam its 1973 title losing the 1974 KNVB Cup to PSV, 6–0.
1 Eerste Divisie; A Amateur teams The Eredivisie teams entered this round.
E Eredivisie PSV would participate in the Cup Winners' Cup.