2025 Supersport 300 World Championship

2025 Supersport 300 World Championship
Previous: 2024 Next: 2026 (WorldSPB)
Support series:
Superbike World Championship
Supersport World Championship
Women’s Circuit Racing World Championship
Yamaha R3 bLU cRU FIM World Cup

The 2025 Supersport 300 World Championship was a part of the 38th season of the Superbike World Championship. It was the final edition of the championship, with a new category set to replace it in 2026. The championship consisted of 16 races across 8 venues.

Beñat Fernández won the championship title at the final round in Jerez.