Jonas Knudsen (born 4 August 2001) is a speedway rider from Denmark.
Knudsen began his British speedway career riding for the Berwick Bandits in the SGB Championship 2022. His debut had been delayed significantly following work permit issues.
In 2022, Knudsen competed in the Under-21 World Championship scoring 14 points. In 2023, he re-signed for Berwick for the SGB Championship 2023 and also helped Esbjerg Vikings win the Danish League. In 2024, he signed for Redcar Bears.
Knudsen signed for Oxford Cheetahs for the SGB Championship 2025.
His younger brother Jesper Knudsen is also a professional speedway rider.