The 2019–20 Serie D was the seventy-second edition of the top level Italian non-professional football championship.
The season was ended in advance by the Italian Football Federation on 20 May 2020, after a two-month suspension, due to the COVID-19 pandemic in Italy.
None of the teams that were relegated in a normal fashion, by virtue of their finishing positions and unsuccessful playouts in the 2018–19 Serie C season will take part in this campaign.
Teams returning to Serie D from higher divisions last season as a result of bankruptcy and/or administrative issues include Foggia, Palermo, Lucchese and Arzachena.
[5] On 31 July 2019, the Lega Nazionale Dilettanti announced to have admitted Agropoli, Legnago Salus, Pomezia, Olympia Agnonese, Legnano, Gladiator, Tamai and Anagni to fill in all the league vacancies.