The FIA World Rallycross Championship is a rallycross series organised by the FIA in conjunction with series promoter Rallycross Promoter GmbH. From the inaugural season in 2014 to 2020, IMG Motorsport fulfilled the role of promoter.

Rallycross is a form of sprint style automobile racing, held on a closed mixed-surface racing circuit, with modified production or specially built road cars, similar to the World Rally Cars. It is mainly popular in the Nordic countries, the Netherlands, Belgium, France and Great Britain. An inexpensive, entry level type of rallycross is the Swedish folkrace or its Norwegian counterpart, the so-called bilcross. The folkrace is most popular in Finland where it was founded back in the late 1960s. In Europe, rallycross can also refer to racing 1:8 scale off-road radio-controlled buggies.