2018–19 Flamengo Basketball season

The 2018–19 season of Flamengo Basketball is the 99th season of the club, and the club's 11th in the Novo Basquete Brasil (NBB). This is the first season after the club captain Marcelinho Machado retired.

Offseason
On May 15, 2018, Flamengo announced they would not renew with head coach José Neto after the team failed to win a title or obtain FIBA Americas League qualification for the second season in a row. On June 4, Gustavo de Conti was named as Neto's replacement.

On July 2, 2018, the club announced the creation of the General Manager position, with Diego Jeleilate arriving from Corpore/Paulistano for the job.

Pre-season
On May 21, 2018, it was announced that the club would play against the Orlando Magic in Florida during the 2018 NBA preseason, in October 5. This will mark the 5th time the club will play against NBA opposition (a record between South American clubs), the 4th time in American soil, and the 3rd against the Magic.

The State League was played as the main preparation for the upcoming season, despite being an official competition. Flamengo won all 6 league round games, despite new signing Kevin Crescenzi missing all games due to ankle injury. He played his first couple for the club on the semifinals against semi-amateur side ABIG/Niterói, winning both games (97-38 and 113-55). Flamengo played local rival's Botafogo in the finals, winning the series 2–0. It was the 13th straight State League title for the club, and 45th overall.

On September 28, 2018, Flamengo announced that Leandro Barbosa signed to play for the team in their NBA preseason game against the Magic.

In

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Out

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Semi finals
*Due to scheduling conflicts, Niterói's home game was played at Flamengo's arena