The 2015 Dakar Rally was the 37th running of the event and the seventh successive year that the event was held in South America. The event started in Buenos Aires, Argentina on January 4, then ran through Argentina, Chile and Bolivia, before returning to Buenos Aires on January 17 after 13 stages of competition, for a total distance of 9,000 km (5,600 mi). For the first time, organizers reserved separate rest days for different categories so that at least two classes raced on each day.

The Dakar Rally or simply "The Dakar", formerly known as the "Paris–Dakar Rally", is an annual rally raid organised by the Amaury Sport Organisation. Most events since the inception in 1978 were staged from Paris, France, to Dakar, Senegal. Security threats in Mauritania led to the cancellation of the 2008 rally, and events from 2009 to 2019 were held in South America. Since 2020, the rally has been held in Saudi Arabia. The event is open to amateur and professional entries, professionals typically making up about eighty percent of the participants.