| Full Members' Cup | |
| Year: | 1989–90 |
| Country: | England |
| Num Teams: | 37 |
| Winners: | Chelsea |
| Count: | 2 |
| Second: | Middlesbrough |
| Semifinal1: | Aston Villa |
| Semifinal2: | Crystal Palace |
| Matches: | 36 |
| Prev Season: | 1988–89 |
| Next Season: | 1990–91 |
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.
Liverpool, Arsenal, Tottenham, Manchester United, Everton, Southampton and Queens Park Rangers opted out of this competition.
| Date | Home team | Score | Away team | |
|---|---|---|---|---|
| 7 November | Leeds United | 1–0 | Blackburn Rovers | |
| 7 November | Sheffield United | 1–0 | Wolverhampton Wanderers | |
| 14 November | Sunderland | 1–2 | Port Vale |
| Date | Home team | Score | Away team | |
|---|---|---|---|---|
| 29 November | Coventry City | 1–3[1] | Wimbledon | |
| 8 November | Oxford United | 2–3 | Luton Town |
| Date | Home team | Score | Away team | |
|---|---|---|---|---|
| 28 November | Barnsley | 1–2 | Leeds United | |
| 28 November | Hull City | 1–2 | Aston Villa | |
| 29 November | Middlesbrough | 3–1 | Port Vale | |
| 28 November | Newcastle United | 2–0 | Oldham Athletic | |
| 29 November | Nottingham Forest | 3–2 | Manchester City | |
| 21 November | Sheffield Wednesday | 3–2 | Sheffield United | |
| 28 November | Stoke City | 2–1 | Bradford City | |
| 29 November | West Bromwich Albion | 0–5 | Derby County |
| Date | Home team | Score | Away team | |
|---|---|---|---|---|
| 28 November | AFC Bournemouth | 2–3 | Chelsea | |
| 14 November | Charlton Athletic | 2–1 | Leicester City | |
| 27 November | Crystal Palace | 4–1 | Luton Town | |
| 21 November | Ipswich Town | 4–1 | Watford | |
| 29 November | Norwich City | 5–0 | Brighton & Hove Albion | |
| 5 December | Portsmouth | 0–1 | Wimbledon | |
| 13 December | Swindon Town | 2–1 | Millwall | |
| 29 November | West Ham United | 5–2 | Plymouth Argyle |
| Date | Home team | Score | Away team | ||
|---|---|---|---|---|---|
| 22 December | Aston Villa | 2–1 | Nottingham Forest | ||
| 20 December | Middlesbrough | 4–1 | Sheffield Wednesday | ||
| 20 December | Newcastle United | 3–2 | Derby County | ||
| 19 December | Stoke City | 2–2 | Leeds United | ||
| Leeds United won 5–4 on penalties | |||||
| Date | Home team | Score | Away team | |
|---|---|---|---|---|
| 22 December | Chelsea | 4–3 | West Ham United | |
| 19 December | Crystal Palace | 2–0 | Charlton Athletic | |
| 21 December | Ipswich Town | 3–1 | Wimbledon | |
| 24 January | Swindon Town | 4–1 | Norwich City |
| Date | Home team | Score | Away team | |
|---|---|---|---|---|
| 17 January | Aston Villa | 2–0 | Leeds United | |
| 23 January | Middlesbrough | 1–0 | Newcastle United |
| Date | Home team | Score | Away team | |
|---|---|---|---|---|
| 13 February | Crystal Palace | 1–0 | Swindon Town | |
| 23 January | Ipswich Town | 2–3 | Chelsea |
| Date | Home team | Score | Away team | |
|---|---|---|---|---|
| 30 January | Aston Villa | 1–2 | Middlesbrough | |
| 6 February | Middlesbrough | 2–1 | Aston Villa |
| Date | Home team | Score | Away team | |
|---|---|---|---|---|
| 21 February | Crystal Palace | 0–2 | Chelsea | |
| 12 March | Chelsea | 2–0 | Crystal Palace |
See also: 1990 Full Members' Cup Final.