The Liga Uruguaya de Básquetbol^[1][2] (abbreviated as LUB; English: Uruguayan Basketball League) is the most important professional club basketball league in Uruguay. It is organized by the Uruguayan Basketball Federation (FUBB). The Uruguayan Basketball League competition began in 2003. Before that time, the Uruguayan basketball championships were only local metropolitan, and no competitions brought together all the clubs in the country. Until the Liga Uruguaya de Básquetbol was created, the capital clubs participated in the Campeonato Uruguayo Federal de Básquetbol (Uruguayan Federal Basketball Championship), while the clubs of the rest of the country competed in regional tournaments. The Uruguayan Federal Basketball Championship was founded in 1915, making it among the oldest on the continent.

The first LUB competition had a dramatic end, with a win in the last second, that brought the Uruguayan League title to Defensor Sporting, whom also repeated in the 2009–10 season. So far, Defensor Sporting will be the only one to appear in all of the league's seasons, after the relegation of Trouville in the 2024–25 season.^[3]

The LUB is currently played in four stages: Torneo Clasificatorio (Qualifying Tournament), Fase Campeonato (Championship Phase) or Reclasificatorio (Requalifier), play-in and play-off.

• In the Qualifying Tournament, the metropolitan clubs play each other twice, home and away, and the first six of the table play in the Championship Phase, where all is guaranteed to participate in the playoffs. The last six play the Requalifier.
• The Championship Phase is contested by six teams. The clubs play each other once, where home-field advantage will be won in the head-to-head of the Qualifier. It only serves to organize the positions for playoffs.
• The Requalifier was contested by six teams also. The clubs play each other once, where home-field advantage will be won in the head-to-head of the Qualifier. The last two are relegated to the Second Division, to participate in the Liga de Ascenso and the top four advance to the first round of play-in. The winners play against the finalists of OBL (a tournament with the top-two teams of Paysandú, Salto and Soriano regional leagues).
• The play-in consist of two rounds, with series being best of three series. The first stage is played as: A) 1st of Requalifier vs. 4th of Requalifier, B) 2nd of Requalifier vs. 3rd of Requalifier. The second stage pairings are: C) 1st of OBL vs. B) Winner, D) 2nd of OBL vs. A) Winner.
• Finally, teams competed in the playoffs, with series being best of five. The first stage was the quarterfinals. The qualifiers are played as: E) 1st vs. D) Winner, F) 2nd vs. C) Winner, G) 3rd vs. 6th and H) 4th vs. 5th. The semifinal pairings were: E) Winner vs. H) Winner and F) Winner vs. G) Winner. The winners of these matches played in the finals in best-of-seven serie, with the winner being crowned as the league champions of the LUB.
• The finalists will play the BCL Americas and the losers of the semifinals, the Liga Sudamericana de Baloncesto.

Defensor Sporting and Trouville are the teams with the most league appearances, having so far competed in every season of the LUB.

Notes: All statistics are only for the Uruguayan Basketball League (Liga Uruguaya de Básquetbol), which is organized by the Uruguayan Basketball Federation (Federación Uruguaya de Basketball). Uruguayan Federal tournaments are not included. The "arena" column reflects the arena where the team plays most of its home games, but does not indicate that the team in question is the owner.

Club	City	Arena	Capacity	Foundation	Seasons	Championships
Aguada	Montevideo	Estadio Propio Aguatero	3,738	1922	21	4
Biguá		Gimnasio Biguá de Villa Biarritz[4]	1,200	1931	21	4
Cordón		Gimnasio Julio C. Zito Barrella	710	1944	12	0
Defensor Sporting		Gimnasio Óscar Magurno[5]	800	1910	22	2
Ferro Carril	Salto	Polideportivo 1° de Diciembre de 1912	3,000	1912	3	0
Hebraica Macabi	Montevideo	Gimnasio Unión Atlética[4][6]	750	1939	17	4
Malvín		Gimnasio Juan Francisco Canil	900	1938	21	5
Nacional		Polideportivo del Gran Parque Central	800	1899	10	0
Peñarol		Estadio Cr. Gastón Güelfi	4,700	1891	5	0
Remeros	Mercedes	Gimnasio Agrimensor Mario Eduardo Bellini	400	1925	3	0
Trouville	Montevideo	Gimnasio Trouville[4]	780	1922	22	1
Urunday Universitario		Gimnasio Urunday Universitario[4]	700	1931	8	0
Urupan	Pando	Gimnasio Santiago A. Cigliuti	700	1924	5	0
Welcome	Montevideo	Gimnasio Óscar Magurno	900	1926	12	0

The Uruguayan Basketball League competition began in 2003. Before that time, the Uruguayan Federal Championships were only local, and no competition brought together all the clubs in the country.

Season	Champion	Result	Runner-up	Champion Coach
2003	Defensor Sporting	3–2	Paysandú	Gerardo Jauri
2004–05	Salto Uruguay	3–1	Paysandú	Javier Espíndola
2005–06	Trouville	3–0	Aguada	Alejandro González
2006–07	Malvín	3–1	Biguá	Pablo López
2007–08	Biguá	3–0	Hebraica Macabi	Marcelo Signorelli
2008–09	Biguá	3–0	Defensor Sporting	Che García
2009–10	Defensor Sporting	3–0	Malvín	Gerardo Jauri
2010–11	Malvín	3–1	Biguá	Pablo López
2011–12	Hebraica Macabi	3–2	Malvín	Marcelo Signorelli
2012–13	Aguada	4–3	Defensor Sporting	Javier Espíndola
2013–14	Malvín	4–1	Defensor Sporting	Pablo López
2014–15	Malvín	4–1	Trouville	Pablo López
2015–16	Hebraica Macabi	4–2	Defensor Sporting	Leonardo Zylbersztein
2016–17	Hebraica Macabi	4–3	Aguada	Leonardo Zylbersztein
2017–18	Malvín	4–3	Aguada	Pablo López
2018–19	Aguada	4–3	Malvín	Miguel Volcan
2019–20	Aguada	3–1	Trouville	Adrián Capelli
2021	Biguá	3–2	Nacional	Hernán Laginestra
2021–22	Biguá	4–1	Peñarol	Diego Cal
2022–23	Hebraica Macabi	4–2	Nacional	Leonardo Zylbersztein
2023–24	Aguada	4–1	Peñarol	Germán Cortizas

• Uruguayan Federal Basketball Championship (1915–2003)
• Liga Femenina de Básquetbol
• Uruguayan Basketball Champions
• Uruguayan Basketball Federation (FUBB)

• FUBB (in Spanish)
• Liga Uruguaya on Basket Uruguay
• Uruguayan Basketball League at Latinbasket.com (in English)