The 2017–18 season is Unión de Santa Fe's 4th consecutive season in the top-flight of Argentine football.
The season covers the period from 1 July 2017 to 30 June 2018.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.
Players may hold more than one non-FIFA nationality.