2023 Supersport 300 World Championship

The 2023 Supersport 300 World Championship was the seventh season of the Supersport 300 World Championship. Álvaro Díaz was world champion in this class last year.

The championship was won by Jeffrey Buis at the Portuguese round. The Dutchman who created WorldSSP300 history with his second title.

Race calendar and results
The provisional 2023 season calendar was announced on 8 November 2022. It was then updated on 28 February 2023 to announce the fourth round at Imola Circuit on 14–16 July.

Championship standings

 * Points