| 2015 Supersport World Championship | |||
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| Support series: Superbike World Championship FIM Superstock 1000 Cup European Superstock 600 Championship European Junior Cup | |||
The 2015 Supersport World Championship was the seventeenth season of the Supersport World Championship—the nineteenth taking into account the two held under the name of Supersport World Series. Kenan Sofuoğlu claimed the title for the fourth time in the championship's history with one race to spare.[1]