Liga, the third tier of German football, having been promoted from the Regionalliga Nordost in 2017.

In addition to the domestic league, Carl Zeiss Jena also participated in this season's edition of the Thuringian Cup, the regional cup for teams in Thuringia.

The season covers a period from 1 July 2017 to 30 June 2018.

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

Players may hold more than one non-FIFA nationality.