The 2020 FIM Moto3 World Championship was a part of the 72nd F.I.M. Road Racing World Championship season. The season calendar has been significantly affected by the COVID-19 pandemic, leading to the cancellation or postponement of many races.
Albert Arenas won the Riders' championship while riding a KTM RC250GP. Honda won its fourth straight Constructors' championship and its 20th overall in the Moto3 class. Leopard Racing won its second straight Teams' championship.