2008–09 British Basketball League season

After a promising rookie season for Everton Tigers in 2007–08, the Merseyside team came of age in their sophomore year, finishing as runners-up in the League and the play-offs whilst entering the record books for their 103-49 win in the BBL Cup Final against Plymouth Raiders, the biggest winning margin (54 points) in BBL history and lowest ever score conceded in a Final.

[1] This season also saw the return of the BBL All-Star game, which was played as a warm-up to the play-off Grand Final.

The tournament was played over two-legs – one at each home arena – and the winner decided by a total aggregate score from both games.

Of the 12 competing teams in this season's BBL Cup, eight entered into the First Round while the top-four ranked teams from last season's Championship – Guildford Heat, Milton Keynes Lions, Newcastle Eagles and Plymouth Raiders – received byes into the quarter-finals, where they would also receive home-court advantage.

The First Round of the BBL Trophy uses its usually round-robin format with the 12 competing teams divided into four regionalised groups with the winner of each group then advancing to a two-legged Semi-final encounter and progress to the Final being determined by a total aggregate score.