The 2017–18 RB Leipzig season was the 9th season in the football club's history and 2nd consecutive and overall season in the top flight of German football, the Bundesliga, having been promoted from the 2.

In addition to the domestic league, RB Leipzig also participated in the season's editions of the domestic cup, the DFB-Pokal, and the first-tier continental cup, the UEFA Champions League.

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.