A | B | C | D | E | F | G | H | CH | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
 The NSC Olimpiyskiy Stadium in Kyiv hosted the final | |
| Tournament details | |
|---|---|
| Dates | Qualifying: 27 June – 23 August 2017 Competition proper: 12 September 2017 – 26 May 2018 |
| Teams | Competition proper: 32 Total: 79 (from 54 associations) |
| Final positions | |
| Champions |  Real Madrid (13th title) |
| Runners-up |  Liverpool |
| Tournament statistics | |
| Matches played | 125 |
| Goals scored | 401 (3.21 per match) |
| Attendance | 5,821,673 (46,573 per match) |
| Top scorer(s) | Cristiano Ronaldo (Real Madrid) 15 goals |
| Best player(s) |
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The 2017–18 UEFA Champions League was the 63rd season of Europe's premier club football tournament organised by UEFA, and the 26th season since it was renamed from the European Champion Clubs' Cup to the UEFA Champions League.
The final was played between Real Madrid and Liverpool at the NSC Olimpiyskiy Stadium in Kyiv, Ukraine.[5] Real Madrid beat Liverpool 3-1 to win a record-extending 13th title, their third title in a row and fourth in five seasons.
As winners, Real Madrid qualified as the UEFA representative for the 2018 FIFA Club World Cup in the United Arab Emirates, and also earned the right to play against the winners of the 2017–18 UEFA Europa League, Atlético Madrid, in the 2018 UEFA Super Cup, winning the former. Additionally, they would have been automatically qualified for the 2018–19 UEFA Champions League group stage,[6] but since they had already qualified through their league performance, the berth reserved was given to the champions of the 2017–18 Czech First League, the 11th-ranked association according to the 2018–19 access list.[7] This edition of the Champions League was particularly influenced by controversial refereeing decisions, such as two clear penalties not given to AS Roma in the semifinal. These controversies were among the reasons that pushed UEFA to introduce VAR in the competition starting from the 2018-19 UEFA Champions League.[8]
Association team allocation
79 teams from 54 of the 55 UEFA member associations participated (the exception being Liechtenstein, which did not organise a domestic league).[9] The association ranking based on the UEFA country coefficients was used to determine the number of participating teams for each association:[10]
- Associations 1–3 each had four teams qualify.
- Associations 4–6 each had three teams qualify.
- Associations 7–15 each had two teams qualify.
- Associations 16–55 (except Liechtenstein) each had one team qualify.
- The winners of the 2016–17 UEFA Champions League and 2016–17 UEFA Europa League were each given an additional entry if they did not qualify for the 2017–18 UEFA Champions League through their domestic league. Because a maximum of five teams from one association could enter the Champions League, if both the Champions League title holders and the Europa League title holders were from the same top three ranked association and finished outside the top four of their domestic league, the fourth-placed team of their association was moved to the Europa League.[11] For this season:
- The winners of the 2016–17 UEFA Champions League, Real Madrid, qualified through their domestic league, meaning the additional entry for the Champions League title holders was not necessary.
- The winners of the 2016–17 UEFA Europa League, Manchester United, did not qualify through their domestic league, meaning the additional entry for the Europa League title holders was necessary.
Kosovo, who became a UEFA member on 3 May 2016, made their debut in the UEFA Champions League.[12][13]
Association ranking
For the 2017–18 UEFA Champions League, the associations were allocated places according to their 2016 UEFA country coefficients, which took into account their performance in European competitions from 2011–12 to 2015–16.[14][15]
Apart from the allocation based on the country coefficients, associations could have additional teams participating in the Champions League, as noted below:
- (UEL) – Additional berth for UEFA Europa League title holders
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