Teams 1
editLeague positions of the previous season shown in parentheses (TH: Champions League title holders; EL: Europa League title holders).[1]
- Notes
- ^ Albania (ALB): In March 2018, Skënderbeu Korçë was handed a 10-year ban from UEFA club competitions over match fixing.[2] Since they finished as champions of the 2017–18 Albanian Superliga, the runners-up of the league, Kukësi, entered the 2018–19 UEFA Champions League instead of the 2018–19 UEFA Europa League.
- ^ France (FRA): Monaco are a club based in Monaco (which is not a UEFA member), but participate in the Champions League through one of the berths for France (any coefficient points they earn count towards France's total).
Teams 2
editLeague positions of the previous season shown in parentheses (TH: Champions League title holders; EL: Europa League title holders).[3]
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- Notes
- ^ Albania (ALB): In March 2018, Skënderbeu Korçë was handed a 10-year ban from UEFA club competitions over match fixing.[4] Since they finished as champions of the 2017–18 Albanian Superliga, the runners-up of the league, Kukësi, entered the 2018–19 UEFA Champions League instead of the 2018–19 UEFA Europa League.
- ^ France (FRA): Monaco are a club based in Monaco (which is not a UEFA member), but participate in the Champions League through one of the berths for France (any coefficient points they earn count towards France's total).
Teams 3
editLeague positions of the previous season shown in parentheses (TH: Champions League title holders; EL: Europa League title holders).[5]
 Real MadridTH (3rd)
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 Borussia Dortmund (4th)
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 Roma (3rd)
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 Porto (1st)
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 Manchester City (1st)
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Internazionale (4th)
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 Shakhtar Donetsk (1st)
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| Barcelona (1st)
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Manchester United (2nd)
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 Paris Saint-Germain (1st)
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 Club Brugge (1st)
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| Valencia (4th)
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Tottenham Hotspur (3rd)
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 Monaco (2nd)[Note FRA]
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 Galatasaray (1st)
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| Bayern Munich (1st)
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Liverpool (4th)
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Lyon (3rd)
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 Viktoria Plzeň (1st)
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| Schalke 04 (2nd)
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Juventus (1st)
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 Lokomotiv Moscow (1st)
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| 1899 Hoffenheim (3rd)
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Napoli (2nd)
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CSKA Moscow (2nd)
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| Champions Path | League Path | ||
|---|---|---|---|
 Young Boys (1st)
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 PSV Eindhoven (1st)
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| Champions Path | League Path | ||
|---|---|---|---|
 AEK Athens (1st)
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 Red Bull Salzburg (1st)
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Spartak Moscow (3rd)
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Standard Liège (2nd)
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| Benfica (2nd)
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Fenerbahçe (2nd)
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| Dynamo Kyiv (2nd)
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Slavia Prague (2nd)
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| Champions Path | League Path | ||
|---|---|---|---|
 Dinamo Zagreb (1st)
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 Midtjylland (1st)
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Basel (2nd)
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PAOK (2nd)
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 CFR Cluj (1st)
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 BATE Borisov (1st)
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Ajax (2nd)
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Sturm Graz (2nd)
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 Legia Warsaw (1st)
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 Red Star Belgrade (1st)
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 Kukësi (2nd)[Note ALB]
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 Alashkert (1st)
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 Malmö FF (1st)
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 Astana (1st)
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 Cork City (1st)
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 F91 Dudelange (1st)
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 Hapoel Be'er Sheva (1st)
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 Olimpija Ljubljana (1st)
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 Zrinjski Mostar (1st)
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 Crusaders (1st)
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 Celtic (1st)
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 Spartak Trnava (1st)
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 Torpedo Kutaisi (1st)
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 Sūduva Marijampolė (1st)
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 APOEL (1st)
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 MOL Vidi (1st)
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 Spartaks Jūrmala (1st)
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 Valletta (1st)
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 Rosenborg (1st)
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 Sheriff Tiraspol (1st)
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 Shkëndija (1st)
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 The New Saints (1st)
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 Qarabağ (1st)
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 Valur (1st)
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 Flora Tallinn (1st)
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 Víkingur Gøta (1st)
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 Ludogorets Razgrad (1st)
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 HJK (1st)
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 Sutjeska Nikšić (1st)
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 Lincoln Red Imps (1st)
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 FC Santa Coloma (1st)
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 La Fiorita (1st)
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 Drita (1st)
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- Notes
- ^ Albania (ALB): In March 2018, Skënderbeu Korçë was handed a 10-year ban from UEFA club competitions over match fixing.[6] Since they finished as champions of the 2017–18 Albanian Superliga, the runners-up of the league, Kukësi, entered the 2018–19 UEFA Champions League instead of the 2018–19 UEFA Europa League.
- ^ France (FRA): Monaco are a club based in Monaco (which is not a UEFA member), but participate in the Champions League through one of the berths for France (any coefficient points they earn count towards France's total).
- ^ "2018/19 UEFA Champions League participants". UEFA.com. Union of European Football Associations. Retrieved 29 June 2018.
- ^ "Albania's Skenderbeu handed 10-year ban over match-fixing in worst ever UEFA punishment". Tirana Times. 29 March 2018.
- ^ "2018/19 UEFA Champions League participants". UEFA.com. Union of European Football Associations. Retrieved 29 June 2018.
- ^ "Albania's Skenderbeu handed 10-year ban over match-fixing in worst ever UEFA punishment". Tirana Times. 29 March 2018.
- ^ "2018/19 UEFA Champions League participants". UEFA.com. Union of European Football Associations. Retrieved 29 June 2018.
- ^ "Albania's Skenderbeu handed 10-year ban over match-fixing in worst ever UEFA punishment". Tirana Times. 29 March 2018.