Questi i roster delle 18 squadre, tra cui l’unica rappresentante italiana (l’Olimpia Milano), che si giocheranno la conquista della Turkish Airlines Euroleague 2021-2022:
| ALBA BERLINO | Coach: Israel Gonzalez | ||
| Playmaker | Jaalen Smith | Maodo Lo | Stefan Peno |
| Guardia | Marcus Eriksson | Jonas Mattisseck | Tamir Blatt |
| Ala piccola | Yovel Zoosman | Tim Schneider | Louis Olinde |
| Ala grande | Luke Sikma | Johannes Thiemann | Christoph Tilly |
| Centro | Christ Koumadje | Ben Lammers | Kresimir Nikic |
| ANADOLU EFES | Coach: Ergin Ataman | ||
| Playmaker | Shane Larkin | Dogus Balbay | Erten Gazi |
| Guardia | Vasilije Micic | Rodrigue Beaubois | Bugraham Tuncer |
| Ala piccola | Krunoslav Simon | James Anderson | Tolga Gecim |
| Ala grande | Chris Singleton | Adrian Moerman | Yigitcan Saybir |
| Centro | Bryant Dunston | Tibor Pleiss |
| ASVEL VILLEURBANE | Coach: T.J Parker | ||
| Playmaker | Elie Okobo | Chris Jones | Antoine Diot |
| Guardia | David Lighty | Paul Lacombe | Matthew Stranzel |
| Ala piccola | William Howard | Charles Kahudi | |
| Ala grande | Kostas Antetokoumpo | Raymar Morgan | |
| Centro | Dylan Osetkowski | Youssoupha Fall |
| BARCELLONA | Coach: Sarunas Jasikevicius | ||
| Playmaker | Nick Calathes | Nicolas Laprovittola | Rokas Jokubaitis |
| Guardia | Cory Higgins | Kyle Kuric | Leandro Bolmaro |
| Ala piccola | Alex Abrines | Nigel Hayes | |
| Ala grande | Nikola Mirotic | Pierre Oriola | Rolands Smith |
| Centro | Brandon Davies | Pau Gasol |
| BAYERN MONACO | Coach: Andrea Trinchieri | ||
| Playmaker | Corey Walden | Nihad Dedovic | |
| Guardia | Andreas Obst | Nick Weiler-Babb | |
| Ala piccola | Vladimir Lucic | Darrun Hilliard | Zan Mark Sisko |
| Ala grande | Deshaun Thomas | Paul Zipser | Augustine Rubit |
| Centro | Othello Hunther | Leon Radosevic |
| CSKA MOSCA | Coach: Dimitris Itoudis | ||
| Playmaker | Alexey Shved | Daniel Hackett | Ivan Ukhov |
| Guardia | Marius Grigonis | Gabriel Iffe Lundberg | |
| Ala piccola | Will Clyburn | Joel Bolomboy | Andrey Lopatin |
| Ala grande | Nikita Kurbanov | Johannes Voigtmann | Semen Antonov |
| Centro | Nikola Milutinov | Vladimir Ivlev |
| FENERBAHCE | Coach: Aleksandar Djordjevic | ||
| Playmaker | Nando De Colo | Pierria Henry | Ali Mohammed |
| Guardia | Marko Guduric | Melih Mahmutoglu | Marial Shayok |
| Ala piccola | Dyshawn Pierre | Danilo Barthel | Ismet Akpinar |
| Ala grande | Jan Vesely | Achille Polonara | |
| Centro | Devin Booker | Ahmet Duverioglu |
| MACCABI TEL AVIV | Coach: Giannis Sfairopoulos | ||
| Playmaker | Scottie Wilbekin | Keenan Evans | |
| Guardia | Kameron Taylor | John Di Bartolomeo | |
| Ala piccola | Angelo Caloiaro | James Nunnally | |
| Ala grande | Derrick Williams | Oz Blayzer | Jake Cohen |
| Centro | Ante Zizic | Jalen Reynolds |
| MONACO | Coach: Zvezdan Mitrovic | ||
| Playmaker | Leo Westermann | Marcos Knight | Rudy Demahis |
| Guardia | Danilo Andjusic | Paris Lee | |
| Ala piccola | Yakuba Ouattara | Yohan Choupas | Armel Traorè |
| Ala grande | Donta Hall | Ibrahima Fall Faye | Jordan Ratton |
| Centro | Donatas Motiejunas | Jerry Boutsiele |
| OLIMPIA MILANO | Coach: Ettore Messina | Assistente: Gianmarco Pozzecco | |
| Playmaker | Malcolm Delaney | Sergio Rodriguez | Riccardo Moraschini |
| Guardia | Jerian Grant | Devon Hall | Troy Daniels |
| Ala piccola | Shavon Shields | Luigi Datome | Davide Alviti |
| Ala grande | Konstantinos Mitoglou | Nicolò Melli | Giampaolo Ricci |
| Centro | Kyle Hines | Kaleb Tarczewski | Paul Biligha |
| OLYMPIAKOS | Coach: Giorgios Mpartzokas | ||
| Playmaker | Kostas Sloukas | Shaquille Mckissic | |
| Guardia | Tyler Dorsey | Thomas Walkup | Michalis Lountzis |
| Ala piccola | Giorgos Printezis | Sasha Vezenkov | |
| Ala grande | Kostas Papanikolaou | Livio Jean-Charles | |
| Centro | Moustapha Fall | Hassan Martin |
| PANATHINAIKOS | Coach: Argyris Pedoulakis | ||
| Playmaker | Lefteris Bochoridis | Daryl Macon | |
| Guardia | Nemanja Nedovic | Kendrick Perry | |
| Ala piccola | Ioannis Papapetrou | Howard Sant-Roos | Leonidas Kaselakis |
| Ala grande | Okaro White | Jeremy Evans | Lefteris Mantzoukas |
| Centro | Giorgos Papagiannis | Jehive Floyd | Vassilis Kavaddas |
| REAL MADRID | Coach: Pablo Laso | ||
| Playmaker | Nigel Williams-Goss | Thomas Huertel | Sergio Llull |
| Guardia | Rudy Fernandez | Jaycee Carroll | Alberto Abalde |
| Ala piccola | Adam Hanga | Fabien Caseur | Jeffrey Taylor |
| Ala grande | Anthony Randolph | Guerschon Yabusele | Trey Thompkins |
| Centro | Walter Tavares | Vincent Poirier |
| BASKONIA | Coach: Dusko Ivanovic | ||
| Playmaker | Wade Baldwin | Jason Granger | |
| Guardia | Simone Fontecchio | Vanja Marinkovic | |
| Ala piccola | Rodions Kurucs | Rokas Giedraitis | Takas Sedekerskis |
| Ala grande | Alec Peters | Sander Raieste | |
| Centro | Landry Nnoko | Matt Costello |
|
STELLA ROSSA |
Coach: Dejan Radonjic | ||
| Playmaker | Langston Hall | Nate Wolters | |
| Guardia | Austin Hollins | Branko Lazic | Aleksa Radanov |
| Ala piccola | Nikola Kalinic | Dejan Davidovac | Aleksa Uskokovic |
| Ala grande | Aaron White | Marko Simonovic | Luka Mitrovic |
| Centro | Ognjen Kuzmic |
| UNICS KAZAN | Coach: Dimitris Priftis | ||
| Playmaker | Lorenzo Brown | Marco Spissu | Vajcelav Zaitsev |
| Guardia | Mario Hezonja | Isaiah Canaan | |
| Ala piccola | Evgenji Valiev | Georgy Zbhanov | |
| Ala grande | John Brown | Andrej Vorontsevich | Will Thomas |
| Centro | Jordan Morgan | Tonye Jekiri |
| ZALGIRIS KAUNAS | Coach: Martin Schiller | ||
| Playmaker | Emmanuel Mudiay | Lukas Lekavicius | |
| Guardia | Janis Strelnieks | Mantas Kalnietis | |
| Ala piccola | Niels Giffey | Arturas Milaknis | |
| Ala grande | Tyler Cavanaugh | Patricio Garino | |
| Centro | Jeoffrey Lauvergne | Martinas Geben | Josh Nebo |
| ZENIT SAN PIETROBURGO | Coach: Xavier Pascual | ||
| Playmaker | Shabazz Napier | Conner Frankamp | |
| Guardia | Jordan Loyd | Billy Baron | Dmitrij Kulagin |
| Ala piccola | Mateusz Ponitka | Sergej Karasev | |
| Ala grande | Mindaugas Kuzminskas | Alex Poythress | Andrej Zubkov |
| Centro | Arturas Gudaitis | Jordan Mickey |
