| Nation | League | Champion | Second place | Title | Last honour |
|---|
 Albania | 2020–21 Kategoria e Parë | Egnatia | Dinamo Tirana | 2nd | 2002–03 |
| 2020–21 Kategoria e Dytë | Shkumbini | Maliqi | 2nd | 1978–79 |
| 2021 Kategoria e Tretë | AF Luftëtari | Murlani | 1st | — |
 Andorra | 2020–21 Segona Divisió | Ordino | FS La Massana | 3rd | 2017–18 |
 Armenia | 2020–21 Armenian First League | Sevan | BKMA | 2nd | 2018–19 |
 Austria | 2020–21 Austrian Football Second League | Blau-Weiß Linz | Liefering | 1st | — |
| 2020–21 Austrian Regionalliga | Season Abandoned, due to the COVID-19 pandemic |
 Azerbaijan | 2020–21 Azerbaijan First Division | Neftçi-2 | Zagatala | 1st | — |
| 2020–21 Azerbaijan Regional League | | | | |
 Belarus | 2021 Belarusian First League | Arsenal Dzerzhinsk | Belshina Bobruisk | 1st | — |
| 2021 Belarusian Second League | Ostrovets | BC Maxline | 1st | — |
| 2021 Belarusian Premier League Reserves Championship | Dinamo Minsk (Reserves) | BATE Borisov (Reserves) | 10th | 2020 |
 Belgium | 2020–21 Belgian First Division B | Union SG | Seraing | 2nd | 1963–64 |
| 2020–21 Belgian First Amateur Division | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Belgian Division 2 | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Belgian Division 3 | Season Abandoned, due to the COVID-19 pandemic |
 Bosnia and Herzegovina
*3-4 tier has been omitted | 2020–21 First League of the Federation of Bosnia and Herzegovina | Posušje | TOŠK Tešanj | 1st | — |
| 2020–21 First League of the Republika Srpska | Rudar Prijedor | Leotar | 3rd | 2014–15 |
 Bulgaria
*3 tier has been omitted | 2020–21 Second Professional Football League | Pirin Blagoevgrad | Lokomotiv Sofia | 1st | — |
 Croatia
*3 tier has been omitted | 2020–21 Croatian Second Football League | Hrvatski Dragovoljac | Rudeš | 3rd | 2012–13 |
 Cyprus | 2020–21 Cypriot Second Division | PAEEK | Aris Limassol FC | 1st | — |
| 2020–21 Cypriot Third Division | Omonia 29is Maiou | Olympias Lympion | 1st | — |
| 2020–21 STOK Elite Division | Season Abandoned, due to the COVID-19 pandemic |
 Czech Republic
*5 tier has been omitted | 2020–21 Czech National Football League | Hradec Králové | Líšeň | 3rd | 2009–10 |
| 2020–21 Bohemian Football League | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Moravian–Silesian Football League | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Czech Fourth Division | (Divize A) Přeštice | Sokol Lom | N/A | N/A |
| (Divize B) Neratovice-Byškovice | Baník Souš | N/A | N/A |
| (Divize C) Sparta Kolín | Vysoké Mýto | N/A | N/A |
| (Divize D) Hodonín | Zbrojovka Brno II | N/A | N/A |
| (Divize E) Viktorie Přerov | Kozlovice | N/A | N/A |
| (Divize F) Frýdlant | Bílovec | N/A | N/A |
 Denmark
*5-8 tier has been omitted | 2020–21 Danish 1st Division | Viborg | Silkeborg | 1st | — |
| 2020–21 Danish 2nd Divisions | (West) Jammerbugt | Boldklubben af 1893 | 1st | — |
| (East) Nykøbing | HIK | 2nd | 2002–03 |
| 2020–21 Denmark Series | IF Lyseng | Young Boys FD | N/A | N/A |
 England
*9-20 tier has been omitted | 2020–21 EFL Championship | Norwich City | Watford | 5th | 2018–19 |
| 2020–21 EFL League One | Hull City | Peterborough United | 1st | — |
| 2020–21 EFL League Two | Cheltenham Town | Cambridge United | 1st | — |
| 2020–21 National League | Sutton United | Torquay United | 1st | — |
| 2020–21 Northern Premier League | Season cancelled, due to the COVID-19 pandemic |
| 2020–21 Southern Football League | Season cancelled, due to the COVID-19 pandemic |
| 2020–21 Isthmian League | Season Abandoned, due to the COVID-19 pandemic |
 Estonia
*5 tier has been omitted | 2021 Esiliiga A | Maardu | Tallinna Kalev | 3rd | 2018 |
| 2021 Esiliiga B | Viimsi | Harju Laagri | 1st | — |
| 2021 II liiga | | | | |
 Faroe Islands | 2021 1. deild | Skála ÍF | Víkingur II | 2nd | 2015 |
| 2021 2. deild | Undrið FF | ÍF II | 1st | — |
| 2021 3. deild | | | | |
 Finland
*5-8 tier has been omitted | 2021 Ykkönen | VPS | RoPS | 1st | — |
| 2021 Kakkonen | (Group A) JaPS | PEPO | N/A | N/A |
| (Group B) PIF | Honka Akatemia | N/A | N/A |
| (Group C) SJK Akatemia | JJK | N/A | N/A |
| 2021 Kolmonen | Season Abandoned, due to the COVID-19 pandemic |
 France
*Level 5-17 has been omitted | 2020–21 Ligue 2 | Troyes | Clermont | 2nd | 2014–15 |
| 2020–21 Championnat National | Bastia | Quevilly-Rouen | 2nd | 2010–11 |
| 2020–21 Championnat National 2 | Season Abandoned, due to the COVID-19 pandemic |
 Georgia
*Level 4-5 has been omitted | 2021 Erovnuli Liga 2 | Sioni Bolnisi | Gagra | 2nd | 1994–95 (East) |
| 2021 Liga 3 | Spaeri Tbilisi | Kolkheti-1913 Poti | 1st | — |
 Germany
*Level 6 has been omitted | 2020–21 2. Bundesliga | VfL Bochum | SpVgg Greuther Fürth | 4th | 2005–06 |
| 2020–21 3. Liga | Dynamo Dresden | Hansa Rostock | 2nd | 2015–16 |
| 2020–21 Regionalliga | (Nord) | No Champion |
| (Nordost) Viktoria Berlin | Altglienicke | 1st | — |
| (Südwest) Freiburg II | Elversberg | 1st | — |
| (West) Borussia Dortmund II | Rot-Weiss Essen | 3rd | 2011–12 |
| (Bayern) Schweinfurt 05 | Viktoria Aschaffenburg | 1st | — |
| 2020–21 Oberliga Baden-Württemberg [ de ] | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Bayernliga [ de ] | (North) Eltersdorf | DJK Vilzing | N/A | N/A |
| (South) Pipinsried | Deisenhofen | N/A | N/A |
| 2020–21 Bremenliga [ de ] | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Oberliga Hamburg [ de ] | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Hessenliga [ de ] | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Mittelrheinliga [ de ] | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Oberliga Niederrhein [ de ] | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Oberliga Niedersachsen [ de ] | Heeslinger | Spelle-Venhaus | N/A | N/A |
| 2020–21 Oberliga Nordost [ de ] | (North) Tasmania Berlin | Greifswalder FC | N/A | N/A |
| (South) Eilenburg | VfL Halle 1896 | N/A | N/A |
| 2020–21 Oberliga Rheinland-Pfalz/Saar [ de ] | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Oberliga Schleswig-Holstein [ de ] | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Oberliga Westfalen [ de ] | Season Abandoned, due to the COVID-19 pandemic |
 Greece
*Level 5 has been omitted | 2020–21 Super League Greece 2 | Ionikos | Xanthi | 2nd | 1993–94 |
| 2020–21 Football League (Greece) | (North) Veria | Kavala | 4th | 1976–77 (Group 2) |
| (South) Kalamata | Episkopi | 3rd | 1973–74 (Group 2) |
| 2020–21 Gamma Ethniki | (Group 1) Orfeas Xanthi | Iraklis | 1st | — |
| (Group 2) Poseidon Michaniona | Thyella Sarakinoi | 1st | — |
| (Group 3) Anagennisi Karditsa | Karitsa | 4th | 1996–97 (Group 2) |
| (Group 4) Diagoras Stefanovikeio | Iraklis Psachna | 1st | — |
| (Group 5) Acheron Kanallaki | Lefkimmi | 1st | — |
| (Group 6) Panionios | Ilioupolis | 1st | — |
| (Group 7) Kifisia | Rouf | 1st | — |
| (Group 8) Thyella Rafina | Aiolikos | 1st | — |
| (Group 9) Zakynthos | Diagoras Vrachnaiika | 1st | — |
| (Group 10) Irodotos | Agios Nikolaos | 3rd | 2017–18 (Group 8) |
 Hungary
*Level 4-8 has been omitted | 2020–21 Nemzeti Bajnokság II | Debrecen | Gyirmót | 8th | 1992–93 (East) |
| 2020–21 Nemzeti Bajnokság III | (West) III. Kerület | Mosonmagyaróvár | 2nd | 1986–87 (Group 3) |
| (Centre) Iváncsa | Kecskemét | 1st | — |
| (East) Tiszakécske | BVSC-Zugló | 3rd | 2017–18 (Centre) |
 Iceland | 2021 1. deild karla | Fram | ÍBV | 5th | 2006 |
| 2021 2. deild karla | Þróttur Vogum | KV | 1st | — |
| 2021 3. deild karla | Höttur/Huginn | Ægir | 1st | — |
| 2021 4. deild karla | KH | Kormákur/Hvöt | 2nd | 2017 |
 Ireland | 2021 League of Ireland First Division | Shelbourne | Galway United | 2nd | 2019 |
 Israel | 2020–21 Liga Leumit | Hapoel Nof HaGalil | Hapoel Jerusalem | 1st | — |
| 2020–21 Liga Alef | (North) Maccabi Bnei Reineh | Tira | 1st | — |
| (South) Hapoel Ashdod | Maccabi Kabilio Jaffa | 2nd | 1989–90 (South) |
| 2020–21 Liga Bet | (North A Division) Tzeirei Kafr Kanna | Ihud Bnei Shefa-'Amr | N/A | N/A |
| (North B Division) Ironi Nesher | Tirat Carmel | N/A | N/A |
| (South A Division) Shimshon Tel Aviv | Hapoel Mahane Yehuda | N/A | N/A |
| (South B Division) Bnei Eilat | Maccabi Ironi Sderot | N/A | N/A |
| 2020–21 Liga Gimel | (Upper Galilee) Maccabi Bnei Jadeidi Makr | Hapoel Ihud Bnei Sumei | N/A | N/A |
| (Lower Galilee) Hapoel Deir Hanna | Ironi Bnei Sha'ab | N/A | N/A |
| (Jezreel) Hapoel Daliyat al-Karmel | Tzeirei Umm al-Fahm | N/A | N/A |
| (Samaria) Maccabi Isfiya | Hapoel Kiryat Yam | N/A | N/A |
| (Sharon) Tzeirei Tira | Bnei Herzliya | N/A | N/A |
| (Tel Aviv) Hapoel Ramat Yisrael | HaMakhtesh Givatayim | N/A | N/A |
| (Central) Ramla | Bnei Yeechalal Rehovot | N/A | N/A |
| (South) Hapoel Segev Shalom | Maccabi Be'er Sheva | N/A | N/A |
 Italy
*Level 5-8 has been omitted | 2020–21 Serie B | Empoli | Salernitana | 3rd | 2017–18 |
| 2020–21 Serie C | (Group A) Como | Alessandria | 2nd | 1967–68 (Group A) |
| (Group B) Perugia | Padova | 3rd | 1966–67 (Group B) |
| (Group C) Ternana | Catanzaro | 2nd | 1967–68 (Group C) |
| 2020–21 Serie D | Title not assigned |
 Kazakhstan | 2021 Kazakhstan First Division | Aksu | Maktaaral | 1st | — |
 Kosovo | 2020–21 First Football League of Kosovo | (Group A) Malisheva | Dukagjini | 1st | — |
| (Group B) Ulpiana | Flamurtari | 1st | — |
| 2020–21 Second Football League of Kosovo | Fushë Kosova | Rahoveci | 1st | — |
| 2020–21 Third Football League of Kosovo | (Kosovo Plain) Shkëndija Hajvalia | Kosova VR | 1st | — |
| (Dukagjini Plain) Prizreni | Australia Mitrovica | 1st | — |
 Latvia | 2021 Latvian First League | Season Abandoned, due to the COVID-19 pandemic |
| 2021 Latvian Second League | Season Abandoned, due to the COVID-19 pandemic |
 Lithuania | 2021 LFF I Lyga | Šiauliai | Jonava | 1st | — |
| 2021 II Lyga | Ekranas | Be1 NFA | 1st | — |
| 2021 III Lyga | (Alytus) RESE Alytus | Druskininkai | 4th | 2020 (Alytus) |
| (Kaunas-Marijampolė) Tauras | Šturmas Kaunas | 2nd | 2006 (Tauragė) |
| (Klaipėda) Sakuona | Neptūnas (Reserves) | 4th | 2019 (Klaipėda) |
| (Panevėžys) PSSK Atomas | Dembava | 2nd | 2013 (Panevėžys) |
| (Šiauliai) ŠSPC-Radviliškis | Akmenė | 2nd | 2018 (Šiauliai) |
| (Vilnius) IFEX Margiris | Medžiai Vilnius | 2nd | 2020 (Vilnius) |
| 2021 SFL | (Group A) Geležinis Vilkas | Lentvaris | 1st | — |
| (Group B) Nemenčinė-Hegvita | Modulis Pabradė | 2nd | 2012 (Group B2) |
| (Group C) Anykščiai | Spartakas Ukmergė (Reserves) | 1st | — |
| (Group D) Ataka Vilnius | IFEX Margiris (Reserves) | 1st | — |
 Luxembourg | 2020–21 Luxembourg Division of Honour | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Luxembourg 1. Division | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Luxembourg 2. Division | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Luxembourg 3. Division | Season Abandoned, due to the COVID-19 pandemic |
 Malta | 2020–21 Maltese Challenge League | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Maltese National Amateur League | Luqa St. Andrew's | Melita | 1st | — |
 Moldova | 2020–21 Moldovan "A" Division | Bălți | Cahul-2005 | 1st | — |
| 2020–21 Moldovan "B" Division | (North) Ungheni | Codru-Juniori | 1st | — |
| (South) Sporting Trestieni | Saxan | 1st | — |
 Montenegro | 2020–21 Montenegrin Second League | Mornar | Arsenal Tivat | 2nd | 2017–18 |
| 2020–21 Montenegrin Third League | (North) Petnjica | Borac | 2nd | 2010–11 |
| (Center) Mladost DG | Nikšić | 2nd | 2019–20 |
| (South) Cetinje | Orjen | 4th | 2018–19 |
 Netherlands
*Level 6-10 has been omitted | 2020–21 Eerste Divisie | Cambuur | Go Ahead Eagles | 3rd | 2012–13 |
| 2020–21 Tweede Divisie | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Derde Divisie | Season Abandoned, due to the COVID-19 pandemic |
| 2020–21 Hoofdklasse | Season Abandoned, due to the COVID-19 pandemic |
 North Macedonia
*Level 4-5 has been omitted | 2020–21 Macedonian Second Football League | (East) Bregalnica Štip | Tikvesh | 3rd | 2003–04 |
| (West) Skopje | Ohrid | 2nd | 1996–97 (West) |
| 2020–21 Macedonian Third Football League | Season Abandoned, due to the COVID-19 pandemic |
 Northern Ireland
*Level 4-5 has been omitted | 2020–21 NIFL Championship | Season cancelled, due to the COVID-19 pandemic |
| 2020–21 NIFL Premier Intermediate League | Season cancelled, due to the COVID-19 pandemic |
 Norway
*Level 5 has been omitted | 1. divisjon | Hamarkameratene | Aalesund | 6th | 2003 |
| 2. divisjon | (Group 1) Kongsvinger | Hødd | 3rd | 2015 (Group 4) |
| (Group 2) Skeid | Arendal | 5th | 2018 (Group 2) |
| 3. divisjon | (Group 1) Gjøvik-Lyn | Gjelleråsen | 1st | — |
| (Group 2) Ørn Horten | Eik Tønsberg | 1st | — |
| (Group 3) Staal Jørpeland | Sola | 2nd | 2016 (Group 6) |
| (Group 4) Frigg Oslo | Fana | 2nd | 2015 (Group 3) |
| (Group 5) Træff | Spjelkavik | 2nd | 2011 (Group 9) |
| (Group 6) Ullern | Lokomotiv Oslo | 2nd | 2014 (Group 2) |
| 4. divisjon | (Agder 1) Søgne | Vigør | N/A | N/A |
| (Agder 2) Randesund | Jerv (Reserves) | N/A | N/A |
| (Akershus) Skjetten | Eidsvold | N/A | N/A |
| (Buskerud) Vestfossen | Modum | N/A | N/A |
| (Finnmark) Bossekop | HIF/Stein | N/A | N/A |
| (Hordaland 1A) Bremnes | Sund | N/A | N/A |
| (Hordaland 1B) Bergen Nord | Askøy | N/A | N/A |
| (Hordaland 2A) Lyngbø | Arna-Bjørnar | N/A | N/A |
| (Hordaland 2B) Frøya | Nordhordland | N/A | N/A |
| (Hålogaland) Harstad | Sortland | N/A | N/A |
| (Indre Østland 1) Lillehammer | Hamarkameratene (Reserves) | N/A | N/A |
| (Indre Østland 2) Engerdal | Ottestad | N/A | N/A |
| (Nordland) Innstranden | Mosjøen | N/A | N/A |
| (Nordmøre og Romsdal) Tomrefjord | Kristiansund (Reserves) | N/A | N/A |
| (Oslo 1) Grei | Gamle Oslo | N/A | N/A |
| (Oslo 2) Kjelsås (Reserves) | Heming | N/A | N/A |
| (Rogaland 1) Sandnes Ulf (Reserves) | Eiger | N/A | N/A |
| (Rogaland 2) Haugesund (Reserves) | Kopervik | N/A | N/A |
| (Sogn og Fjordane 1) Eid | Måløy | N/A | N/A |
| (Sogn og Fjordane 2) Førde | Stryn | N/A | N/A |
| (Sunnmøre) Hødd (Reserves) | Herd | N/A | N/A |
| (Telemark) Urædd | Stathelle og Omegn | N/A | N/A |
| (Troms) Krokelvdalen | Skarp | N/A | N/A |
| (Trøndelag 1) Levanger (Reserves) | Verdal | N/A | N/A |
| (Trøndelag 2) Steinkjer | Vuku | N/A | N/A |
| (Trøndelag 3) Trygg/Lade | Nardo (Reserves) | N/A | N/A |
| (Trøndelag 4) Kvik | Buvik | N/A | N/A |
| (Vestfold) Sandefjord (Reserves) | Eik Tønsberg (Reserves) | N/A | N/A |
| (Østfold) Sprint-Jeløy | Råde | N/A | N/A |
 Poland | 2020–21 I liga | Radomiak Radom | Bruk-Bet Termalica Nieciecza | 2nd | 1983–84 (Group 2) |
| 2020–21 II liga | Górnik Polkowice | Katowice | N/A | N/A |
| 2020–21 III liga | (Group 1) Pogoń Grodzisk Mazowiecki | Świt Nowy Dwór Mazowiecki | N/A | N/A |
| (Group 2) Radunia Stężyca | Świt Szczecin | N/A | N/A |
| (Group 3) Ruch Chorzów | Polonia Bytom | N/A | N/A |
| (Group 4) Wisła Puławy | Sokół Sieniawa | N/A | N/A |
| 2020–21 IV liga | (Group 1) Lechia Dzierżoniów | Strzegom | N/A | N/A |
| (Group 2) Karkonosze Jelenia Góra | Chrobry Głogów (Reserves) | N/A | N/A |
| (Group 3) Zawisza Bydgoszcz | Włocłavia Włocławek | N/A | N/A |
| (Group 4) Tomasovia Tomaszów Lubelski | Świdniczanka Świdnik | N/A | N/A |
| (Group 5) Carina Gubin | Ilanka Rzepin | N/A | N/A |
| (Group 6) ŁKS Łódź (Reserves) | Warta Sieradz | N/A | N/A |
| (Group 7) Unia Tarnów | Poprad Muszyna | N/A | N/A |
| (Group 8) Wiślanie Jaśkowice | Orzeł Ryczów | N/A | N/A |
| (Group 9) Mławianka Mława | Świt Staroźreby | N/A | N/A |
| (Group 10) Ząbkovia Ząbki | Victoria Sulejówek | N/A | N/A |
| (Group 11) Pilica Białobrzegi | Mazovia Mińsk Mazowiecki | N/A | N/A |
| (Group 12) Ruch Zdzieszowice | Starowice Dolne | N/A | N/A |
| (Group 13) Korona Rzeszów | Izolator Boguchwała | N/A | N/A |
| (Group 14) Wissa Szczuczyn | Tur Bielsk Podlaski | N/A | N/A |
| (Group 15) Stolem Gniewino | Kaszubia Kościerzyna | N/A | N/A |
| (Group 16) Raków Częstochowa | Znicz Kłobuck | N/A | N/A |
| (Group 17) Odra Wodzisław Śląski | Spójnia Landek | N/A | N/A |
| (Group 18) Czarni Połaniec | Moravia Morawica | N/A | N/A |
| (Group 19) Mamry Giżycko | Mrągowia Mrągowo | N/A | N/A |
| (Group 20) Pogoń Nowe Skalmierzyce | Warta Międzychód | N/A | N/A |
| (Group 21) Kluczevia Stargard | Vineta Wolin | N/A | N/A |
 Portugal | 2020–21 Liga Portugal 2 | Estoril | Vizela | 3rd | 2011–12 |
| 2020–21 Campeonato de Portugal | Trofense | Estrela da Amadora | 1st | — |
 Romania | 2020–21 Liga II | U Craiova 1948 | Rapid București | 2nd | 2005–06 (Group 2) |
| 2020–21 Liga III | (Group 1) Bucovina Rădăuți | Foresta Suceava | 1st | — |
| (Group 2) Oțelul Galați | Dacia Unirea Brăila | 3rd | 1980–81 (Group 3) |
| (Group 3) Afumați | Mostiștea Ulmu | 2nd | 2015–16 (Group 3) |
| (Group 4) Steaua București | FCSB II | 1st | — |
| (Group 5) Corona Brașov | SR Brașov | 2nd | 2011–12 (Group 6) |
| (Group 6) Vedița Colonești | Filiași | 1st | — |
| (Group 7) Viitorul Șelimbăr | Măgura Cisnădie | 1st | — |
| (Group 8) Șoimii Lipova | Crișul Chișineu-Criș | 2nd | 1991–92 (Group 11) |
| (Group 9) Cugir | Unirea Dej | 3rd | 1989–90 (Group 11) |
| (Group 10) Minaur Baia Mare | Zalău | 6th | 2014–15 (Group 5) |
 Russia
*Level 4 has been omitted | 2020–21 Russian Football National League | Krylia Sovetov Samara | Orenburg | 2nd | 2014–15 |
| 2020–21 Russian Professional Football League | (Group 1) Kuban Krasnodar | Kuban-Holding | 1st | — |
| (Group 2) Olimp-Dolgoprudny | Zenit-2 Saint Petersburg | 1st | — |
| (Group 3) Metallurg Lipetsk | Ryazan | 5th | 2008 (Centre) |
| (Group 4) KAMAZ | Tyumen | 3rd | 2014–15 (Ural-Povolzhye) |
 Scotland
*Level 5-7 has been omitted | 2020–21 Scottish Championship | Heart of Midlothian | Dundee | 3rd | 2014–15 |
| 2020–21 Scottish League One | Partick Thistle | Airdrieonians | 2nd | 2000–01 |
| 2020–21 Scottish League Two | Queen's Park | Edinburgh City | 2nd | 1999–00 |
 Serbia
*Level 4-7 has been omitted | 2020–21 Serbian First League | Radnički 1923 | Kolubara | 1st | — |
| 2020–21 Serbian League | (Belgrade) Teleoptik | Brodarac | 2nd | 2016–17 |
| (East) Timok | Budućnost Popovac | 2nd | 2011–12 |
| (Vojvodina) Mladost Novi Sad | Vršac | 1st | — |
| (West) Sloga Požega | Jedinstvo Ub | 1st | — |
 Slovakia
*Level 4-8 has been omitted | 2020–21 2. Liga | Tatran Liptovský Mikuláš | Dukla Banská Bystrica | 1st | — |
| 2020–21 3. Liga | (Bratislava) Rohožník | Rača | 1st | — |
| (West) Spartak Myjava | Beluša | 2nd | 2010–11 (West) |
| (Central) Námestovo | Rakytovce | 1st | — |
| (East) Humenné | Odeva Lipany | 1st | — |
 Slovenia | 2020–21 Slovenian Second League | Radomlje | Krka | 2nd | 2015–16 |
| 2020–21 Slovenian Third League | (East) Rogaška | Bistrica | 1st | — |
| (West) Ilirija 1911 | Izola | 2nd | 2015–16 (Centre) |
 Spain
*Level 6-10 has been omitted | 2020–21 Segunda División | Espanyol | Mallorca | 2nd | 1993–94 |
| 2020–21 Segunda División B | (Group 1C) Burgos | Celta de Vigo B | 2nd | 2000–01 (Group A) |
| (Group 2C) Real Sociedad B | Athletic Bilbao B | 1st | — |
| (Group 3C) Ibiza | Barcelona B | 1st | — |
| (Group 4C) Linares Deportivo | UCAM Murcia | 1st | — |
| (Group 5C) Badajoz | San Sebastián de los Reyes | 1st | — |
| 2020–21 Tercera División | (Group 1) Arenteiro | Bergantiños | 1st | — |
| (Group 2) Ceares | Llanera | 1st | — |
| (Group 3) Cayón | Rayo Cantabria | 1st | — |
| (Group 4) Gernika | Real Sociedad C | 1st | — |
| (Group 5) Europa | Vilafranca | 3rd | 1962–63 (Group 7) |
| (Group 6) Eldense | Alzira | 13th | 2013–14 (Group 6) |
| (Group 7) Leganés B | Unión Adarve | 1st | — |
| (Group 8) Gimnástica Segoviana | Palencia Cristo Atlético | 4th | 2005–06 (Group 8) |
| (Group 9) Vélez | Atlético Mancha Real | 2nd | 1991–92 (Group 9) |
| (Group 10) Xerez Deportivo | San Roque de Lepe | 1st | — |
| (Group 11) Ibiza Islas Pitiusas | Andratx | 1st | — |
| (Group 12) Mensajero | Panadería Pulido | 3rd | 2014–15 (Group 12) |
| (Group 13) Águilas | Pulpileño | 1st | — |
| (Group 14) Cacereño | Montijo | 12th | 2016–17 (Group 14) |
| (Group 15) Peña Sport | San Juan | 10th | 2016–17 (Group 15) |
| (Group 16) Racing Rioja | Náxara | 1st | — |
| (Group 17) Teruel | Brea | 4th | 2017–18 (Group 17) |
| (Group 18) Marchamalo | Calvo Sotelo Puertollano | 1st | — |
 Sweden
*Level 5-10 has been omitted | 2021 Superettan | Värnamo | Sundsvall | 1st | — |
| 2021 Division 1 | (Norra) Brommapojkarna | Dalkurd | 2nd | 2016 (Norra) |
| (Södra) Utsikten | Skövde | 2nd | 2014 (Södra) |
| 2021 Division 2 | (Norrland) Team TG | Friska Viljor | N/A | N/A |
| (Norra Svealand) Stockholm Internazionale | Karlberg | N/A | N/A |
| (Södra Svealand) Motala | United Nordic | N/A | N/A |
| (Norra Götaland) Oddevold | Forward | N/A | N/A |
| (Södra Götaland) Olympic | Hässleholm | N/A | N/A |
| (Västra Götaland) Ängelholm | Eskilsminne | N/A | N/A |
 Switzerland
*Level 6-9 has been omitted | 2020–21 Swiss Challenge League | Grasshoppers | Thun | 2nd | 1950–51 |
| 2020–21 Swiss Promotion League | Yverdon-Sport | Cham | 1st | — |
| 2020–21 Swiss 1. Liga | (Group 1) Young Boys (Reserves) | Chênois | 2nd | 2017–18 |
| (Group 2) Biel-Bienne | Baden | 3rd | 2005–06 |
| (Group 3) Wettswil-Bonstetten | Tuggen | 2nd | 2014–15 (Group 3) |
| 2020–21 2. Liga Interregional | (Group 1) Monthey | Servette (Reserves) | N/A | N/A |
| (Group 2) La Sarraz-Eclépens | Fribourg | N/A | N/A |
| (Group 3) Thun (Reserves) | Ajoie-Monterri | N/A | N/A |
| (Group 4) Team Ticino U21 | Taverne | N/A | N/A |
| (Group 5) Freienbach | Lachen/Altendorf | N/A | N/A |
| (Group 6) Uzwil | Kreuzlingen | N/A | N/A |
 Turkey
*Level 5-8 has been omitted | 2020–21 TFF First League | Adana Demirspor | Giresunspor | 4th | 1990–91 (Group C) |
| 2020–21 TFF Second League | (White) Manisa | Hekimoğlu Trabzon | 1st | — |
| (Red) Eyüpspor | Sakaryaspor | 1st | — |
| 2020–21 TFF Third League | (Group 1) Diyarbekirspor 1977 | Bucaspor 1928 | 1st | — |
| (Group 2) Nazilli Belediyespor | Belediye Kütahyaspor | 4th | 2011–12 (Group 2) |
| (Group 3) Somaspor | Esenler Erokspor | 1st | — |
| (Group 4) Adıyaman | Bursa Yıldırımspor | 1st | — |
 Ukraine
*Level 4-8 has been omitted | 2020–21 Ukrainian First League | Veres Rivne | Chornomorets Odesa | 2nd | 1992 (Group A) |
| 2020–21 Ukrainian Second League | Metal Kharkiv | Podillya Khmelnytskyi | 1st | — |
 Wales
*Level 4-10 has been omitted | 2020–21 Cymru North | Season cancelled, due to the COVID-19 pandemic |
| 2020–21 Cymru South | Season cancelled, due to the COVID-19 pandemic |
| 2020–21 Ardal Leagues | Season cancelled, due to the COVID-19 pandemic |
| 2020–21 Welsh Alliance League | Season cancelled, due to the COVID-19 pandemic |
Japan
: 
RFU 
: 
: 
Senegal 
Argentina 
Brazil 
Qatar 
Dushanbe 
Iran 
Uzbekistan 
Kyrgyzstan 
Maldives 
India 
Nepal 
Bangladesh 
Saudi Arabia 
Jordan 
Iraq 
Syria 
Egypt 
Morocco 
Bahrain 
United Arab Emirates 
Algeria 
Tunisia 
Cameroon 
Mauritania 
Mozambique 
Uganda 
Ethiopia 
Tanzania 
Burundi 
South Sudan 
Kenya 
Port Elizabeth 
Eswatini 
Lesotho 
Togo 
Ivory Coast 
Nigeria 
Burkina Faso 
Niger 
Mali 
Guinea-Bissau 
Guatemala 
Costa Rica 
United States 
Panama 
Mexico 
Honduras 
Canada 
Nepal 
Palestine 
Sri Lanka 
Seychelles 
Chile
Australia 
Afghanistan 
Bhutan 
Malawi 
Zambia 
Equatorial Guinea 
