Ajax
Anderlecht
Athletic
Atlético
AZ
Beşiktaş
Braga
Club Brugge
Hannover
Lazio
Legia
Lokomotiv Moskva
Man. City
Man. United
Metalist
Olympiacos
PAOK
Plzeň
Porto
PSV
Rubin
Salzburg
Schalke
Sporting
Standard Liège
Steaua
Stoke
Trabzonspor
Twente
Udinese
Valencia
Wisła
AEK
AEK Larnaca
Anderlecht
Athletic
Atlético
Austria Wien
AZ
Beşiktaş
Birmingham
Braga
Celtic
Club Brugge
Dynamo Kyiv
Fulham
H. Tel-Aviv
Hannover
København
Lazio
Legia
Lokomotiv Moskva
M. Haifa
M. Tel-Aviv
Malmö
Maribor
Metalist
OB
PAOK
PSG
PSV
Rapid Bucureşti
Rennes
Rubin
Salzburg
Schalke
Shamrock Rovers
Slovan Bratislava
Sporting
Standard Liège
Steaua
Stoke
Sturm
Tottenham
Twente
Udinese
Vaslui
Vorskla
Wisła
Zürich
Aalesund
AEK
AEK Larnaca
Alania
Anderlecht
Athletic
Atlético
Austria Wien
AZ
Beşiktaş
Birmingham
Braga
Bursaspor
Celtic
Club Brugge
Crvena zvezda
CSKA Sofia
Differdange
Dinamo Bucureşti
Dinamo Tbilisi
Dnipro
Dynamo Kyiv
Ekranas
Fulham
Gaz Metan
Guimarães
H. Tel-Aviv
Hannover
Hearts
Helsingborg
HJK
Karpaty
Lazio
Legia
Litex
Lokomotiv Moskva
M. Tel-Aviv
Maribor
Metalist
Nacional
Nordsjælland
Omonia
Panathinaikos
PAOK
Partizan
PSG
PSV
Rabotnicki
Rangers
Rapid Bucureşti
Rennes
Ried
Roma
Rosenborg
Salzburg
Schalke
Sevilla
Shamrock Rovers
Sion
Śląsk
Slovan Bratislava
Sochaux
Sparta Praha
Spartak Moskva
Spartak Trnava
Sporting
Standard Liège
Steaua
Stoke
Thun
Tottenham
Trabzonspor
Vaslui
Vorskla
Young Boys
Zestafoni
Aalesund
AEK Larnaca
Aktobe
Alania
Anorthosis
Atlético
Austria Wien
AZ
Bnei Yehuda
Brøndby
Bursaspor
Club Brugge
Crvena zvezda
Den Haag
Differdange
Dinamo Bucureşti
Dinamo Tbilisi
Elfsborg
Fulham
Gaz Metan
Gaziantepspor
Gomel
Guimarães
H. Tel-Aviv
Häcken
Hajduk Split
Hearts
Helsingborg
Jablonec
Karpaty
KR
Legia
Levski
Lokomotiv Sofia
M. Tel-Aviv
Mainz
Metalurgi Rustavi
Midtjylland
Mladá Boleslav
Nacional
Olimpija Ljubljana
Olympiacos Volou
Omonia
Paks
Palermo
PAOK
Qarabağ
Rabotnicki
Rennes
Ried
Salzburg
Sarajevo
Senica
Śląsk
Sligo
Sparta Praha
Spartak Trnava
Split
St Patrick's
Stoke
Strømsgodset
Thun
Vaduz
Vålerenga
Varaždin
Ventspils
Vorskla
Westerlo
Young Boys
Željezničar
Aalesund
AEK Larnaca
Aktobe
Anorthosis
Austria Wien
Bnei Yehuda
Bohemians
Crusaders
Den Haag
Differdange
Dinamo Tbilisi
Domžale
Dundee United
EB/Streymur
Elfsborg
Ferencváros
FH
Flamurtari
Floriana
Fulham
Gagra
Gaz Metan
Gaziantepspor
Glentoran
Häcken
Honka
Irtysh
Iskra-Stal
Jablonec
Juvenes-Dogana
Kecskemét
KR
KuPS
Levadia
Liepājas Metalurgs
Llanelli
Lokomotiv Sofia
M. Tel-Aviv
Metalurg Skopje
Metalurgi Rustavi
Midtjylland
Mika
Minsk
Nacional
Olimpija Ljubljana
Olympiacos Volou
Örebro
Paks
Qarabağ
Rabotnicki
Rad
Rudar Pljevlja
Salzburg
Sant Julià
Sarajevo
Shakhter
Shakhtyor
Sheriff
Śląsk
Spartak Trnava
Split
St Patrick's
Sūduva
Tauras
Thun
Tirana
TNS
TPS
Tromsø
Vaduz
Vålerenga
Varaždin
Ventspils
Vllaznia
Vojvodina
Vorskla
Westerlo
Xäzär Länkäran
Željezničar
Žilina
Aalesund
Banants
Banga
Birkirkara
Budućnost Podgorica
Cliftonville
Daugava Daugavpils
Dinamo Tbilisi
Elfsborg
Ferencváros
Flamurtari
Fola
Fulham
Glentoran
Häcken
Honka
ÍBV
ÍF
Irtysh
Jagiellonia
Käerjéng
Kalju
Koper
KR
Lusitans
Metalurgi Rustavi
Milsami
Minsk
Neath
NSÍ
Olimpija Ljubljana
Olimpik-Şüvälan
Paks
Qarabağ
Rabotnicki
Rad
Renova
Shakhter
Široki Brijeg
Spartak Trnava
St Patrick's
TNS
Trans
Tre Penne
Tromsø
UE Santa Coloma
Ulisses
Varaždin
Vllaznia
ZetaThe UEFA Europa League comprises three qualifying rounds, a play-off round, a group stage and five knockout rounds.
Qualifying
In matches in the three qualifying rounds and the play-offs, clubs play two matches against each other on a home-and-away basis. The club which scores the greater aggregate of goals qualifies for the next round, with away goals and then penalties used to determine the winner in the event of a draw.
Group stage
The 38 play-off round winners join the ten losers from the UEFA Champions League play-offs. The clubs are split into 12 groups of four teams, playing home and away against each of their pool opponents between September and December. Two sides from each section advance, proceeding into the round of 32 alongside eight third-placed teams from the UEFA Champions League group stage.
Knockout phase
From the last 32 until the semi-finals, clubs play two games against each other on a home-and-away basis with the same rules as the qualifying and play-off rounds applied. In the last 32, group winners and the four third-placed sides from the UEFA Champions League with the best records are seeded, guaranteeing they will play the second leg at home. Teams from the same group or the same association cannot be drawn together. From the round of 16 onwards the draw is free.
Final
The final is decided by a single match, which this season will be played at the National Stadium, Bucharest on Wednesday 9 May.
Further details, including the criteria for separating teams that finish level on points in a group, can be found in the official competition regulations.