The 2020 FIM Motocross World Championship was the 64th FIM Motocross World Championship season.

It had 18 events, starting at Matterley Basin on 1 March and ending at Pietramurata, Italy on 8 November.

[1] No races were held from April to July due to the COVID-19 pandemic.

The championship was planned to contested over twenty rounds in Europe, Asia and South America.

[2] Eventually the season saw many changes due to the Covid-19 pandemic – after cancellations and replacements, 18 rounds took place only in Europe and half of them in Italy.