The 2019–20 season was Újpest Football Club's 139th competitive season, 128th consecutive season in the OTP Bank Liga, and 127th year in existence as a football club.

On 25 February, Újpest announced that their home games against Puskás Akadémia and Paks would be played at the ZTE Arena in Zalaegerszeg instead of Újpest's regular Szusza Ferenc Stadion in Budapest.

[1] On 11 March, the Hungarian Football Federation announced that all games would be played behind closed doors due to the COVID-19 pandemic,[2] before announcing that all games had been postponed on 16 March.

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

Players may hold more than one non-FIFA nationality.