Supersport 300 World Championship

FIM Supersport 300 World Championship
CategoryMotorcycle racing
RegionEurope
Inaugural season2017
Folded2025
ConstructorsKawasaki, Kove, KTM, Yamaha
Tyre suppliersPirelli
Last Riders' championBeñat Fernández
Last Makes' championKawasaki
Last Teams' championTeam ProDina XCI
Official websiteworldsbk.com
Current season

The Supersport 300 World Championship (or short abbreviated as WorldSSP300) was a motorcycle racing competition on paved surfaces, for production-based motorcycles. Created in 2017, the championship ran as a support class to the Superbike World Championship until 2025, when the series was folded and replaced by the new 2026 Sportbike World Championship.