| Season: | 2002–03 |
| Chairman: | Gerd Niebaum |
| League Topscorer: | Jan Koller (13) |
| Pattern B1: | _blackhorizontal |
| Pattern So1: | _hoops_black |
| Leftarm1: | FFE517 |
| Body1: | FFE517 |
| Rightarm1: | FFE517 |
| Shorts1: | 000000 |
| Socks1: | FFE517 |
| Pattern B2: | _thinblacksides |
| Pattern Sh2: | _yellowsides2 |
| Pattern So2: | _hoops_black |
| Leftarm2: | 000000 |
| Body2: | FFE517 |
| Rightarm2: | 000000 |
| Shorts2: | 000000 |
| Socks2: | FFE517 |
| Pattern La3: | _thinyellowborder |
| Pattern B3: | _blackarc |
| Pattern Ra3: | _thinyellowborder |
| Pattern Sh3: | _yellow_stripes |
| Pattern So3: | _hoops_black |
| Leftarm3: | FFE517 |
| Body3: | FFE517 |
| Rightarm3: | FFE517 |
| Shorts3: | 000000 |
| Socks3: | FFE517 |
Borussia Dortmund played the 2002–03 season in the Bundesliga. Aside from failing to retain the Bundesliga title, Dortmund failed to reach the Champions League knockout phase, despite winning away from home against eventual champions Milan. In the end, finishing third in Bundesliga was enough to go into the qualifying phase of the Champions League for the coming season.
See also: 2002–03 Bundesliga.
See main article: 2002–03 Bundesliga.
Jan Koller 13
Ewerthon 11 Márcio Amoroso 8