The 2022–23 NK Osijek season was the club's 109th season in existence and the 32nd consecutive season in the top flight of Croatian football. This was the last season Osijek played their matches on Gradski Vrt Stadium.[1]
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
Source: SuperSport HNL Rules for classification: 1) Points; 2) Head-to-head points; 3) Head-to-head goal difference; 4) Head-to-head goals scored (at home if two teams tied); 5) Goal difference; 6) Goals scored; 7) Play-off (Note: Criteria 2-4 and 7 is only used if deciding champion, teams to international competition or teams for relegation and in that case criteria 6 will not be used).[25] (C) Champions Notes: