2018 Supersport 300 World Championship

The 2018 Supersport 300 World Championship was the second season of the Supersport 300 World Championship of motorcycle racing.

The season was won by Ana Carrasco who became the first female rider in history to win a World Championship in solo motorcycle road racing.

Entry list

 * All entries used Pirelli tyres.

Championship standings
Points were awarded as follows:

Riders' championship
Bold – Pole position Italics – Fastest lap