| Tourney Name: | Inter-Cities Fairs Cup |
| Year: | 1969–1970 |
| Champion Other: | Arsenal |
| Count: | 1 |
| Second Other: |  Anderlecht |
| Matches: | 126 |
| Top Scorer: | Paul Van Himst (10 goals) |
| Prevseason: | 1968–69 |
| Nextseason: | 1970–71 |
The 1969–70 Inter-Cities Fairs Cup was the 12th Inter-Cities Fairs Cup. The competition was won by Arsenal over two legs in the final against Anderlecht. It was the first of Arsenal's two European trophies, the other being the European Cup Winners' Cup in 1993–94.
|align=right|Las Palmas 
||align=center|0–1||align=left| Hertha BSC||align=center|0–0||align=center|0–1|-|align=right|Juventus 
||align=center|5–2||align=left|
Lokomotiv Plovdiv||align=center|3–1||align=center|2–1|-|align=right|Lausanne-Sport 
||align=center|2–4||align=left|
Győr||align=center|1–2||align=center|1–2|-|align=right|Barcelona ||align=center|6–0||align=left|
B 1913||align=center|4–0||align=center|2–0|-|align=right|Hansa Rostock ||align=center|3–2||align=left|
Panionios||align=center|3–0||align=center|0–2|align=right|Slavia Sofia || align=center|3–1||align=left| Valencia||align=center|2–0||align=center|1–1|align=right|Dinamo Bacău 
||align=center|7–0||align=left|
Floriana||align=center|6–0||align=center|1–0|align=right|Aris ||align=center|1–4||align=left| Cagliari||align=center|1–1||align=center|0–3|-|align=right|Sabadell ||align=center|3–5||align=left| Club Brugge||align=center|2–0||align=center|1–5|-|align=right|Partizan ||align=center|2–3||align=left| Újpest||align=center|2–1||align=center|0–2|}
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Liverpool won 14–0 on aggregate.----Juventus won 5–2 on aggregate.----Internazionale won 4–0 on aggregate.----Dinamo Bacău won 7–0 on aggregate.----The game was abandoned after Cagliari's third goal because three Greek players refused to return to the pitch after they were expelled by the police. UEFA ruled the 3–0 score as final.
Cagliari won 4–1 on aggregate.----Napoli won 3–2 on aggregate.----Slavia Sofia won 3–1 on aggregate.----Vitória de Setúbal won 7–2 on aggregate.----Porto won 4–1 on aggregate.----Sporting CP won 6–2 on aggregate.----Newcastle United won 3–1 on aggregate.----Vitória de Guimarães won 2–1 on aggregate.
|align=right|Győr ||align=center|2–5||align=left| Barcelona||align=center|2–3||align=center|0–2|-|align=right|Kilmarnock ||align=center|4–3||align=left| Slavia Sofia||align=center|4–1||align=center|0–2|- |align=right|Skeid 
||align=center|0–2||align=left| Dinamo Bacău||align=center|0–0||align=center|0–2|align=right|Club Brugge ||align=center|5–5 (a)||align=left| Újpest||align=center|5–2||align=center|0–3|}
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Southampton won 8–4 on aggregate.----Hertha BSC won 3–1 on aggregate.----Internazionale won 4–2 on aggregate.----Dinamo Bacău won 2–0 on aggregate.----Carl Zeiss Jena won 3–0 on aggregate.----Napoli won 1–0 on aggregate.----Newcastle United won 1–0 on aggregate.----Arsenal won 3–0 on aggregate.----Vitória de Setúbal won on the away goals rule.
|align=right|Barcelona ||align=center|2–3||align=left| Internazionale||align=center|1–2||align=center|1–1|-|align=right|Kilmarnock ||align=center|1–3||align=left| Dinamo Bacău||align=center|1–1||align=center|0–2|align=right|Carl Zeiss Jena ||align=center|4–0||align=left| Újpest||align=center|1–0||align=center|3–0|}
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Hertha BSC won 2–1 on aggregate.----Dinamo Bacău won 3–1 on aggregate.----The game was abandoned in the 33rd minute due to low visibility and fog. It was replayed.
Internazionale won 3–2 on aggregate.----The game was originally scheduled for 7 January, but was postponed due to fog in Amsterdam.
Ajax won 4–1 on aggregate.
|align=right|Dinamo Bacău ||align=center|1–9||align=left| Arsenal||align=center|0–2||align=center|1–7 |}
----
Internazionale won 2–1 on aggregate.----Arsenal won 9–1 on aggregate.
|}
Anderlecht won 2–1 on aggregate.
See main article: 1970 Inter-Cities Fairs Cup Final. |}
Arsenal won 4–3 on aggregate.