There were no official Ballon d'Or nominees in 2020 because the award was canceled that year due to the COVID-19 pandemic. The organizers did not present a winner or release a list of nominees for 2020.
However, there was widespread public opinion and discussion about who might have been nominated or considered strong candidates. Robert Lewandowski was widely regarded as deserving the award in 2020, with others like Lionel Messi, Cristiano Ronaldo, Kylian Mbappe, and Neymar also often mentioned in speculation and fan discussions.
So officially, there were no nominees for the Ballon d'Or in 2020 because the award ceremony did not take place that year.