The 1990–91 Copa del Rey was the 89th staging of the Spanish Cup. The competition began on 5 September 1990 and ended on 29 June 1991 with the final. First round Second round Third round Fourth round |} Fifth round |} First leg Second leg Round of 16 |} First leg Second leg Quarter-finals |} First leg Second leg Semi-finals |} First leg Second leg Final |} External links rsssf.com linguasport.com Copa del Rey seasons 1990–91 in Spanish football cups