FSV Mainz 05's 119th season in existence and 15th consecutive season in the Bundesliga.

They also competed in the DFB-Pokal.

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

Players may hold more than one non-FIFA nationality.

Win Draw Loss Source: Soccerway Source: DFB The league fixtures were unveiled on 30 June 2023.