The 2019–20 Liga IV Harghita was the 52nd season of Liga IV Harghita, the fourth tier of the Romanian football league system. The season began on 28 August 2019 and was scheduled to end in June 2020, but was suspended in March because of the COVID-19 pandemic in Romania. The season was ended officially on 14 July 2020 after AJF Harghita (County Football Association) concluded that the teams cannot meet the medical conditions imposed by the medical protocol.