The 2015 World RX of Barcelona was the tenth round of the second season of the FIA World Rallycross Championship. The event was held at the Circuit de Barcelona-Catalunya in Montmeló, Catalonia. Reigning champion and championship leader Petter Solberg took his third victory of the season, to extend his championship lead to 35 points over Timmy Hansen. Hansen, who had finished as top qualifier for the fourth meeting in succession – including two heat wins – also won a semi-final but could only finish third in the final, behind compatriot Johan Kristoffersson.