Men
Intercontinental
Africa
International leagues
- BAL – Basketball Africa League
National leagues
- ABC Super Division – Algerian Basketball Championship Super Division
- ABL – Angolan Basketball League – first tier
- ABC – Angola Second Division Basketball Championship – second tier
- NPL – Nigerian Premier League
Americas
International leagues
National leagues
- LNB – Liga Nacional de Básquet – first tier
- TNA – Torneo Nacional de Ascenso – second tier
- CBB – Campeonato Brasileiro de Basquete – first tier
- NBB – Novo Basquete Brasil – first tier
- Liga Ouro de Basquete (Brazil) – second tier
- LDB – Liga de Desenvolvimento de Basquete (Under-22 League) – third tier
- NBA – National Basketball Association (Toronto Raptors)
- NBA G League (Raptors 905)
- CEBL – Canadian Elite Basketball League
- BSL-Basketball Super League (North America)
- LBSCR – Liga de Baloncesto Superior de Costa Rica
- LNBP – Liga Nacional de Baloncesto Profesional – first tier
- CIBACOPA – Circuito de Baloncesto de la Costa del Pacífico – second tier
- NBA G League – first tier Minor League
- ACB League
- LNB – Liga Nicaragüense de Baloncesto (2018–present)
- LPB – Liga Profesional de Baloncesto (2015–present)
- LBL – Liga de Basket de Lima
- LNB – Liga Nacional de Basketball
- NBA – National Basketball Association
- Big 3 Basketball
- ABA – American Basketball Association
- ECBL – East Coast Basketball League
- FBA – Florida Basketball Association
- MBL – Maximum Basketball League
- SBL - Southern Basketball League
- NABL – North American Basketball League
- NNBA – New Nation Basketball Association
- PBL – Premier Basketball League
- PBA - Pro Basketball Association
- TBL – The Basketball League
- UBA – Universal Basketball Association
- UBL – United Basketball League
- WABA - Women's American Basketball Association
- WNBA - Women's National Basketball Association
College and university basketball
- OUA – Wilson Cup
- U Sports – W. P. McGee Trophy
- ACCA – Association of Christian College Athletics
- Bible College NIT
- CCCAA – California Community College Athletic Association
- NAIA Division I – NAIA Men's Division I Basketball Championship
- NAIA Division II – NAIA Men's Division II Basketball Championship
- NCAA Division I – NCAA Men's Division I Basketball Championship
- NCAA Division II – NCAA Men's Division II Basketball Championship
- NCAA Division III – NCAA Men's Division III Basketball Championship
- NCAA Division II – NCAA Men's Division II Basketball Championship
- NCCAA – List of NCCAA men's basketball champions
- NIT – National Invitation Tournament
- NJCAA Division I – NJCAA Men's Division I Basketball Championship
- NJCAA Division II – NJCAA Men's Division II Basketball Championship
- NJCAA Division III – NJCAA Men's Division III Basketball Championship
- NJCAA Division II – NJCAA Men's Division II Basketball Championship
- NWAC – Northwest Athletic Conference
- USCAA – United States Collegiate Athletic Association
- NCBBA - National Club Basketball Association
Youth leagues
Asia
International leagues
National leagues
- BPL – Bahraini Premier League
- CBA – Chinese Basketball Association – first tier
- NBL – National Basketball League – second tier
- CUBA – Chinese University Basketball Association – third tier
- CHBL – China High School Basketball League – fourth tier
- CUBA – Chinese University Basketball Association – third tier
- NBL – National Basketball League – second tier
- INBC – Indian National Basketball Championship for Men
- INBL - Indian National Basketball League
- EPBL – Elite Pro Basketball League
- KBC – Kazakhstan Basketball Championship – first tier
- KBC – Kazakhstan Basketball Cup – second tier
- B.League – first tier since 2016–17
- B.League Division Two – second tier
- B.League Division Three – third tier
- AJIBC - All Japan Intercollegiate Basketball Championship – fourth tier
- B.League Division Three – third tier
- B.League Division Two – second tier
- JPBL – Jordanian Premier Basketball League - first tier
- First Division - second tier
- FLB League – Lebanese Basketball League
- OBL – Oman Basketball League
Philippines (Philippine basketball is not divided into a tier-like league system)
The Games and Amusements Board (GAB) issues professional licenses for players playing in professional leagues. GAB had instructed amateur leagues that are paying its players to be under its belt. Due to the COVID-19 pandemic, this hasn't been applied as the GAB has only allowed professional leagues (of any sport) to operate.
- Professional leagues
- Amateur leagues:
- PBA Developmental League
- Pinoyliga
- Sinag Liga Asya
- College basketball (many college leagues also offer high school basketball tournaments):
- CESAFI – Cebu Schools Athletic Foundation, Inc.
- COSAA – Cagayan de Oro Schools Athletics Association
- CUSA – Colleges and Universities Sports Association
- ISSA – Iloilo Schools Sports Association
- LCUAA – Laguna Colleges and Universities Athletic Association
- MNCAA – Men's National Collegiate Athletic Association
- NAASCU – National Athletic Association of Schools, Colleges and Universities
- NCAA – National Collegiate Athletic Association Basketball Championship
- NCAA South – National Collegiate Athletic Association – South
- NCRAA – National Capital Region Athletic Association
- PCCL – Philippine Collegiate Championship League
- SCUAA – State Colleges and Universities Athletic Association
- UAAP – University Athletic Association of the Philippines Basketball Championship
- UCAA – Universities and Colleges Athletic Association
- UCAL – Universities and Colleges Athletic League
- UCCL – United Collegiate Championship League
- UCLAA – United Central Luzon Athletic Association
- High school basketball:
- FCAAF – Filipino-Chinese Amateur Athletic Federation
- MMTLBA – Metro Manila Tiong Lian Basketball Association
- PCYAA – Philippine Ching Yuen Athletic Association
- PSSBC – Philippine Secondary Schools Basketball Championship
- PRISAA – Private Schools Athletic Association (Philippines)
- QBL – Qatari Basketball League
- SPL – Saudi Premier League
- NBL -National Basketball League (Singapore)
- Pro-Am SBL - Pro-Am Singapore Basketball League
- Merlion Cup
- KBL – Korean Basketball League – first tier
- KBL R–League – KBL Reserve League – second tier
- KUBL – Korean University Basketball League – third tier
- KBL R–League – KBL Reserve League – second tier
- SBL – Syrian Basketball League
- PLG – P. League+ – first tier (professional)
- T1 – T1 League – first tier (professional)
- SBL – Super Basketball League – second tier (semi-professional)
- A League – third tier (amateur)
- UBA – University Basketball Alliance – fourth tier
- HBL – High School Basketball League – fifth tier
- UBA – University Basketball Alliance – fourth tier
- A League – third tier (amateur)
- SBL – Super Basketball League – second tier (semi-professional)
College and university basketball
- LIMA – Liga Mahasiswa
Philippines (many college leagues also offer high school basketball tournaments):
- CESAFI – Cebu Schools Athletic Foundation, Inc.
- COSAA – Cagayan de Oro Schools Athletics Association
- CUSA – Colleges and Universities Sports Association
- ISSA – Iloilo Schools Sports Association
- LCUAA – Laguna Colleges and Universities Athletic Association
- MNCAA – Men's National Collegiate Athletic Association
- NAASCU – National Athletic Association of Schools, Colleges and Universities
- NCAA – National Collegiate Athletic Association Basketball Championship
- NCAA South – National Collegiate Athletic Association – South
- NCRAA – National Capital Region Athletic Association
- PCCL – Philippine Collegiate Championship League
- SCUAA – State Colleges and Universities Athletic Association
- UAAP – University Athletic Association of the Philippines Basketball Championship
- UCAA – Universities and Colleges Athletic Association
- UCAL – Universities and Colleges Athletic League
- UCCL – United Collegiate Championship League
- UCLAA – United Central Luzon Athletic Association
- UBA – University Basketball Alliance
Youth leagues
- CHBL – China High School Basketball League
- FCAAF – Filipino-Chinese Amateur Athletic Federation
- MMTLBA – Metro Manila Tiong Lian Basketball Association
- PCYAA – Philippine Ching Yuen Athletic Association
- PSSBC – Philippine Secondary Schools Basketball Championship
- PRISAA – Private Schools Athletic Association (Philippines)
- HBL – High School Basketball League
Europe
International leagues
Continental Leagues
Clubs participate pan-European leagues in two ways. Larger clubs play in Euroleague Basketball's system, with several of them having long-term licenses and others having annual licenses (irrespective of domestic league results), akin to the franchise model in North American sports. The Basketball Champions League (BCL) is the other way clubs participate, which is mostly based on sporting merit. A club usually opts to play in the EuroLeague instead of the BCL if it's eligible for both.
- BCL – Basketball Champions League – organized by FIBA Europe
- FIBA Europe Cup – organized by FIBA Europe
- EuroLeague – organized by Euroleague Basketball
- EuroCup – organized by Euroleague Basketball
Subregional leagues
- AAC – Alpe Adria Cup – featuring teams from Austria, Croatia, Czechia (Czech Republic), Hungary, Poland, Romania, Slovakia and Slovenia
- ABA League (also known as the Adriatic League) – first tier league featuring teams from Bosnia and Herzegovina, Croatia, Montenegro, North Macedonia, Serbia and Slovenia
- ABA League Second Division – second tier
- BIBL – Balkan International Basketball League – featuring teams from Albania, Bulgaria, Israel, Kosovo, Montenegro and North Macedonia
- VTB–League – VTB United League – featuring teams from Belarus, Kazakhstan, and Russia
National leagues
- ABSL – Albanian Basketball Superliga – first tier
- ABFD – Albanian Basketball First Division – second tier
- ABS – Austrian Basketball Superliga – first tier
- BZL – Basketball Zweite Liga – second tier
- BNXT League – first tier in both countries from 2021-22 season onward
- BCBH – Basketball Championship of Bosnia and Herzegovina – first tier
- A1 Liga – second tier
- NBL – National Basketball League, also called the Kooperativa NBL for sponsorship reasons
- DBL – Danish Basketball League
- KML – Korvpalli Meistriliiga
- Korisliiga – first tier
- I Division – second tier
- LNB Pro A – Ligue Nationale de Basketball Pro A – first tier
- LNB Pro B – Ligue Nationale de Basket Pro B – second tier
- GSL – Georgian Superliga
- BBL – Basketball Bundesliga – first tier
- GBL – Greek Basket League – first tier
- GBL A2 – Greek A2 Basket League – second tier
- GBL B – Greek B Basket League – third tier
- GBL C – Greek C Basket League – fourth tier
- GBL B – Greek B Basket League – third tier
- GBL A2 – Greek A2 Basket League – second tier
- IBPL – Israeli Basketball Premier League – first tier
- Liga Leumit – second tier
- Liga Artzit – third tier
- Liga Leumit – second tier
- Serie A – first tier
- KBSL – Kosovo Basketball Superleague – first tier
- KBFL – Kosovo Basketball First League – second tier
- LBL – Latvijas Basketbola līga
- LKL – Lietuvos Krepšinio Lyga – first tier
- NKL – Nacionalinė Krepšinio Lyga – second tier
- RKL – Regioninė Krepšinio Lyga – third tier
- NKL – Nacionalinė Krepšinio Lyga – second tier
- MFL – Macedonian First League
- Promotiedivisie – second tier; top purely domestic level from 2021 to 2022
- PLK – Polska Liga Koszykówki (Polish Basketball League) – first tier
- I Liga – second tier
- II Liga – third tier
- I Liga – second tier
- VTB–League – VTB United League – first tier since the 2012–13 season (also featuring teams from Belarus, Estonia, Kazakhstan and Poland)
- BSL 1 – Basketball Super League 1 – second tier; was the first tier league from 1992 to 2010
- BSL 2 – Basketball Super League 2 – third tier
- First League – fourth tier
- VTB-League U21 – fifth tier
- First League – fourth tier
- BSL 2 – Basketball Super League 2 – third tier
- BSL 1 – Basketball Super League 1 – second tier; was the first tier league from 1992 to 2010
- BLS – Basketball League of Serbia – first tier
- BLS B – Basketball League of Serbia B – second tier
- RBL First Division – Regional Basketball League First Division – third tier
- RBL Second Division – Regional Basketball League Second Division – fourth tier
- RBL First Division – Regional Basketball League First Division – third tier
- BLS B – Basketball League of Serbia B – second tier
- SEL Slovak Extraliga
- 1. A SKL – Premier A Slovenian Basketball League (also known for sponsorship reasons as Liga Telemach) – first tier
- SSBL – Slovenian Second Basketball League – second tier
- SBL – School Basketball League – third tier
- SSBL – Slovenian Second Basketball League – second tier
- Liga Endesa – first tier
- LEB Oro – second tier
- LEB Plata – third tier
- Liga EBA – fourth tier
- Primera División – fifth tier
- Liga EBA – fourth tier
- LEB Plata – third tier
- LEB Oro – second tier
- SBL – Swedish Basketball League (Ligan) – first tier
- Basketettan – second tier
- LNBA – Swiss Basketball League – first tier
- Championnat LNB – second tier
- BSL – Turkish Basketball Super League – first tier
- TBL – Turkish Basketball First League – second tier
- TB2L – Turkish Basketball Second League – third tier
- TRBL – Turkish Regional Basketball League – fourth tier
- TB2L – Turkish Basketball Second League – third tier
- TBL – Turkish Basketball First League – second tier
- UBSL – Ukrainian Basketball Superleague – first tier
- Higher League – second tier
- BBL – British Basketball League – First Tier
- NBL - National Basketball League – Second Tier
- SBC – Scottish Basketball Championship – Second Tier
Oceania
- NBL – National Basketball League – Major League
- NBL1 – Minor League
- Big V – Minor League
- University Basketball League – Minor League
