The 2012–13 Arminia Bielefeld season is the 108th season in the club's football history.
Liga, the third tier of German football.
It is the club's second season in this league, having been relegated from the 2.
The club also took part in the 2012–13 edition of the DFB-Pokal, the German Cup, where it reached the second round and will face Bundesliga side Bayer Leverkusen next.
[2] Arminia Bielefeld also takes part in the 2012–13 edition of the Westphalia Cup, having reached the third round after a 3–1 win over FC Gütersloh in the second round.