The 2019 FIA World Rally Championship was the forty-seventh season of the World Rally Championship, a rallying championship recognised by the Fédération Internationale de l'Automobile (FIA) as the highest class of international rallying. Teams and crews competed in fourteen events for the World Rally Championships for Drivers, Co-drivers and Manufacturers. Crews were free to compete in cars complying with World Rally Car and Group R regulations; however, only Manufacturers competing with World Rally Cars homologated under regulations introduced in 2017 were eligible to score points in the Manufacturers' championship. The series was once again supported by the WRC2 category at every round, which was split into 2 classifications: WRC2 Pro for manufacturer entries and WRC2 for private entries, and by Junior WRC at selected events. WRC3 was discontinued in 2018.

At the conclusion of the championship, Ott Tänak and Martin Järveoja won their maiden drivers' and co-drivers' championships, taking an unassailable lead of thirty-six points over Thierry Neuville and Nicolas Gilsoul. Defending champions Sébastien Ogier and Julien Ingrassia finished third. In the manufacturers' championship, Hyundai Shell Mobis WRT won their first title since they first participated in the championship. Defending manufacturers' champions Toyota Gazoo Racing WRT were second, with Citroën Total WRT in third.

The championship was contested over fourteen rounds in Europe, the Middle East, North and South America, and Australia.

Following the return of Rally Turkey to the championship in 2018, the FIA announced plans to expand the calendar to fourteen rounds in 2019 with the long-term objective of running sixteen championship events. Twelve prospective bids for events were put together, including candidate events in New Zealand, Japan and Chile. Prospective events in Kenya, Croatia, Canada and Estonia expressed interest in joining the calendar within five years.

The planned expansion put pressure on European rounds to maintain their position on the calendar as teams were unwilling to contest sixteen events immediately. The Tour de Corse and Rally Italia Sardegna proved to be unpopular among teams for the logistical difficulties of travelling to Corsica and Sardinia and low spectator attendance at the events. Organisers of Rally Japan reached an agreement with the sport's promoter to host a rally in 2019, with the proposed event moving from Sapporo on the island of Hokkaido to Toyota City in Honshu. However, plans to return to Japan were abandoned when the promoter came under pressure to retain the Tour de Corse.

The proposed events in Japan and Kenya ran candidate events in 2019 in a bid to join the championship in 2020. Both were successful in secure a place on the 2020 calendar. The calendar published in October 2018 included Rally Chile as part of the expansion to fourteen rounds. The event was based in Concepción and ran on gravel roads.

The route of Rallye Monte Carlo was shortened by 70.91 km (44.1 mi) compared to the 2018 route. The route was revised after rule changes that were introduced for the 2019 championship limited the maximum distance of a route to 350 km (217.5 mi). Organisers of the Tour de Corse announced plans for a new route, with up to three-quarters of the 2019 route being revised from the 2018 rally. Rally de Portugal was also shortened by 46.72 km (29.0 mi) compared to the 2018 route.

The following teams and crews competed in the 2019 FIA World Rally Championship. Citroën, Ford, Hyundai and Toyota were all represented by manufacturer teams and eligible to score points in the FIA World Rally Championship for Manufacturers. All World Rally Championship entries utilizing Michelin tyres.