| Tourney Name: | UEFA Cup |
| Year: | 1987–88 |
| Dates: | 15 September 1987 – 18 May 1988 |
| Num Teams: | 64 |
| Champion Other: | Bayer Leverkusen |
| Count: | 1 |
| Second Other: | Espanyol |
| Matches: | 126 |
| Goals: | 308 |
| Top Scorer: | Kenneth Brylle Larsen (Club Brugge) Kálmán Kovács (Honved) Dimitris Saravakos (Panathinaikos) 6 goals each |
| Prevseason: | 1986–87 |
| Nextseason: | 1988–89 |
The 1987–88 UEFA Cup was the 17th season of the UEFA Cup, the secondary club football competition organised by the Union of European Football Associations (UEFA). The final was played over two legs at the Estadi de Sarriá, Barcelona, Spain, and at Ulrich-Haberland Stadion, Leverkusen, Germany. The competition was won by Bayer Leverkusen of Germany, who defeated Español of Spain on penalty kicks with an aggregate result of 3–3.
In only their second season of European football, Bayer Leverkusen earned their first major title in professional competition. This was also the second UEFA Cup final decided on penalty kicks, four years after the first one. This was the third season in which all English clubs were banned from European football competitions
A total of 64 teams from 31 UEFA member associations participated in the 1987–88 UEFA Cup, all entering from the first round over six knock-out rounds. The association ranking based on the UEFA country coefficients is used to determine the number of participating teams for each association:
Due to the ongoing ban on English clubs, their three births were allocated to associations 9–11, each gaining a third birth.
For the 1987–88 UEFA Cup, the associations are allocated places according to their 1986 UEFA country coefficients, which takes into account their performance in European competitions from 1981–82 to 1985–86.
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The labels in parentheses show how each team qualified for competition:
The schedule of the competition was as follows. Matches were scheduled for Wednesdays, though some matches exceptionally took place on Tuesdays, Thursdays or Saturdays.
| First round | 16–17 September 1987 | 30 September 1987 | |
| Second round | 21–24 October 1987 | 3–4 November 1987 | |
| Third round | 25 November 1987 | 9 December 1987 | |
| Quarter-finals | 2 March 1988 | 16 March 1988 | |
| Semi-finals | 6 April 1988 | 20 April 1988 | |
| Final | 4 May 1988 | 18 May 1988 |
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Internazionale won 3–1 on aggregate.----Aberdeen won 1–0 on aggregate.----Español won 5–1 on aggregate.----Brøndby won 2–1 on aggregate.----Budapesti Honvéd won 1–0 on aggregate.----Borussia Dortmund won 3–2 on aggregate.----Dundee United won 4–1 on aggregate.----Victoria București won 4–0 on aggregate.----Barcelona won 2–1 on aggregate.----1–1 on aggregate; Wismut Aue won on away goals.----Spartak Moscow won 3–1 on aggregate.----4–4 on aggregate; Chaves won on away goals.----TJ Vítkovice won 3–1 on aggregate.----Club Brugge won 5–2 on aggregate.----Feyenoord won 10–2 on aggregate.----Bayer Leverkusen won 5–1 on aggregate.----Dynamo Moscow won 5–0 on aggregate.----Beveren won 2–1 on aggregate.----Flamurtari won 3–2 on aggregate.----Utrecht won 2–0 on aggregate.----Werder Bremen won 5–1 on aggregate.----Panathinaikos won 4–3 on aggregate.----Dinamo Tbilisi won 4–3 on aggregate.----Hellas Verona won 4–2 on aggregate.----Red Star Belgrade won 5–2 on aggregate.----Milan won 3–1 on aggregate.The game was played in Lecce because of the ban on San Siro.----Sportul Studențesc won 3–1 on aggregate.----Vitória de Guimarães won 2–1 on aggregate.----Toulouse won 6–1 on aggregate.----TPS won 2–1 on aggregate.----Juventus won 7–0 on aggregate.----Velež Mostar won 5–3 on aggregate.
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Werder Bremen won 7–6 on aggregate.----Español won 2–0 on aggregate.----2–2 on aggregate; Feyenoord won on away goals.----Borussia Dortmund won 3–2 on aggregate.----3–3 on aggregate; Sportul Studențesc won 3–0 on penalties.----Budapesti Honvéd won 5–2 on aggregate.----TJ Vítkovice won 3–2 on aggregate.----Verona won 3–2 on aggregate.----Barcelona won 2–0 on aggregate.----Flamurtari won 2–1 on aggregate.----Internazionale won 2–1 on aggregate.----3–3 on aggregate; Panathinaikos won on away goals.----Club Brugge won 5–3 on aggregate.----Bayer Leverkusen won 2–1 on aggregate.----Dinamo Tbilisi won 2–1 on aggregate.----1–1 on aggregate; Vitória de Guimarães won 5–4 on penalties.
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Club Brugge won 5–3 on aggregate.----Panathinaikos won 7–6 on aggregate.----Barcelona won 4–2 on aggregate.----Bayer Leverkusen won 3–2 on aggregate.----Hellas Verona won 4–1 on aggregate.----Español won 2–1 on aggregate.----2–2 on aggregate; TJ Vítkovice won 5–4 on penalties.----Werder Bremen won 3–2 on aggregate.
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Bayer Leverkusen won 1–0 on aggregate.----Werder Bremen won 2–1 on aggregate.----Club Brugge won 3–2 on aggregate.----Español won 2–0 on aggregate.
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Bayer Leverkusen won 1–0 on aggregate.----Español won 3–2 on aggregate.
See main article: 1988 UEFA Cup Final.
3–3 on aggregate; Bayer Leverkusen won 3–2 on penalties.