During the 2019–20 season, Fortuna Sittard participated in the Eredivisie and the KNVB Cup.

The season covers the period from 1 July 2019 to 30 June 2020.

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.

[35] The 2019–20 season was abandoned on 24 April 2020, due to the coronavirus pandemic in the Netherlands.