The 2020 CS Warsaw Cup was scheduled to be held in November 2020 in Warsaw, Poland. It was part of the 2020–21 ISU Challenger Series. Medals would have been awarded in the disciplines of men's and ladies' singles. On October 10, 2020, the Polish Figure Skating Association released information for competitors regarding traveling to Poland during the COVID-19 pandemic. As with the prior two Challenger events, only European skaters were entered for the event.