2012–13 Alemannia Aachen season

The 2012–13 Alemannia Aachen season is the 113th season in the club's football history. In 2012–13, the club plays in the 3. Liga, the third tier of German football. It is the clubs first-ever season in this league, having been relegated from the 2. Bundesliga in 2012.

Review and events
The club also took part in the 2012–13 edition of the DFB-Pokal, the German Cup, but was knocked out in the first round by Bundesliga side Borussia Mönchengladbach.

Squad, matches played and goals scored

 * colspan="14"|Players sold or loaned out after the start of the season:
 * colspan="14"|Players sold or loaned out after the start of the season:


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 * Notes
 * 2 Player from the youth teams.