The 2020–21 BBL season was the 34th season of the British Basketball League, the top British professional basketball league, since its establishment in 1987.

[6][7] The BBL Trophy retained the same, 16-team bracket format as introduced for the 2018–19 season.

The eleven BBL teams were joined in the first round draw by five invited teams; Solent Kestrels, Derby Trailblazers, Thames Valley Cavaliers, Hemel Storm and Reading Rockets, all from the English Basketball League.

[8][9] After changes were made to the 2020–21 Championship structure, the Playoffs returned to the two-legged aggregate series format used prior to the 2019–20 season.

[11][12] Source: 2020–21 Molten BBL Team of the Year Source: 2020–21 BBL All-British Team of the Year Source: 2020–21 BBL Defensive Team of the Year *Note: FIBA has withdrawn the London Lions from the FIBA Europe Cup Regular-season due to COVID-19 disruptions.