The 74th annual Cannes Film Festival took place from 6 to 17 July 2021, after having been originally scheduled from 11 to 22 May 2021. American director Spike Lee was invited to be the head of the jury for the festival for a second time, after the COVID-19 pandemic in France scuttled plans to have him head the jury of the 2020 Cannes Film Festival.

The Cannes Film Festival, until 2003 called the International Film Festival, is an annual film festival held in Cannes, France, which previews new films of all genres, including documentaries, from all around the world. Founded in 1946, the invitation-only festival is held annually at the Palais des Festivals et des Congrès. The festival was formally accredited by the FIAPF in 1951.