The 2020 Nadeshiko League was the 32nd season of the Nadeshiko League, the main league for women's association football in Japan. It was also the 16th season in its current format. The league was originally scheduled to begin on 2 May 2020 but was delayed due to the COVID-19 pandemic. The league was finally rescheduled to begin on 18 July 2020 with the first two rounds of matches played behind closed doors.