The 2019–20 season was the 6th consecutive season of İstanbul Başakşehir in the Süper Lig and their 30th year in existence. The season was slated to cover a period from 1 July 2019 to 30 June 2020. It was extended extraordinarily beyond 30 June due to the COVID-19 pandemic in Turkey.
On 19 July 2020, Başakşehir were crowned champions of the Turkish Süper Lig for the first time in the club's history.[1] They also became only the sixth club in the competition's history to win the league title.[2]
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
^Trabzonspor were banned for 1 season from all UEFA club competitions for either the 2020–21 or 2021–22 seasons by the UEFA Club Financial Control Body on 3 June 2020 due to breaches of the UEFA Financial Fair Play Regulations.[4]