DSC Arminia Bielefeld, or just Arminia, is a German sports club from Bielefeld, North Rhine-Westphalia. Arminia is most well known as a professional football club, having participated in the first tier of German Football, the Bundesliga, for a total of 19 seasons. In addition to football, the club offers field hockey, figure skating, and cue sports departments. The club has over 15,000 members and the club colours are black, white and blue. Arminia's name derives from the Cheruscan chieftain Arminius, who defeated a Roman army in the Battle of the Teutoburg Forest.

Bielefeld is a city in the Ostwestfalen-Lippe Region in the north-east of North Rhine-Westphalia, Germany. With a population of 341,755, it is also the most populous city in the administrative region of Detmold and the 18th largest city in Germany.