During the 2008–09 German football season, Borussia Dortmund competed in the Bundesliga.In Jürgen Klopp's first season in charge of Dortmund, they rose to 6th in the final table, but were 2 points shy of qualifying for the revamped UEFA Europa League.

Notably, they were one of only two teams to go the league season unbeaten at home (the other being champions Wolfsburg).

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Players may hold more than one non-FIFA nationality.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.