Liga de Desenvolvimento de Basquete (LDB) (English: Developmental Basketball League) is an Under-20 age version of the top-tier level Brazilian men's professional basketball league, the Novo Basquete Brasil (NBB). The players need to be 20 years old and under to play in this tournament. It is a way to discover new players for future Brazilian national team generations, and for new young talents to be developed for the main teams of the Novo Basquete Brasil (NBB).

However, not all the teams that make up the NBB also compete in the LDB, due to not having competitive teams in the lower Brazilian basketball league categories. So some teams focus instead on the training of their young athletes, or participate as guests, and can still help to produce good future players for Brazilian basketball. LDB receives support from the Brazilian Federal Government to be organized.

The Brazil LDB U20 (Liga de Desenvolvimento de Basquete) is a premier basketball tournament dedicated to showcasing the talents of young athletes across Brazil. Designed for players aged 20 and under, this competition serves as a vital platform for emerging basketball stars to demonstrate their skills, compete at a high level, and gain exposure to scouts and professional teams.

Held annually, the tournament features teams from various regions of Brazil, representing both established basketball clubs and grassroots organizations. The LDB U20 not only emphasizes competitive play but also focuses on player development, sportsmanship, and teamwork.

Throughout the tournament, fans can expect thrilling matchups, high-energy performances, and the opportunity to witness the future of Brazilian basketball. With a commitment to fostering young talent, the Brazil LDB U20 plays a crucial role in the country's rich basketball culture, paving the way for the next generation of athletes to shine on both national and international stages.