1989–90 Full Members Cup

The 1989–90 Full Members Cup, known as the Zenith Data Systems Cup for sponsorship reasons, was the 5th staging of a knock-out competition for English football clubs in the First and Second Division. The winners were Chelsea and the runners-up were Middlesbrough.

The competition began on 7 November 1989 and ended with the final on 25 March 1990 at the Wembley Stadium.

In the first round, there were two sections: North and South. In the following rounds each section gradually eliminates teams in knock-out fashion until each has a winning finalist. At this point, the two winning finalists face each other in the combined final for the honour of the trophy.