| 2013 Supersport World Championship | |||
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| Support series: Superbike World Championship FIM Superstock 1000 Cup European Superstock 600 Championship European Junior Cup | |||
The 2013 Supersport World Championship was the fifteenth season of the Supersport World Championship—the seventeenth taking into account the two held under the name of Supersport World Series. It began on 24 February at Phillip Island and finished on 20 October at the Circuito de Jerez after 13 rounds.
The season was marred by the death of Italian rider Andrea Antonelli at the Moscow Raceway round.