Sans Soleil (French pronunciation: [sɑ̃ sɔlɛj]; "Sunless") is a 1983 French documentary film directed by Chris Marker. It is a meditation on the nature of human memory, showing the inability to recall the context and nuances of memory, and how, as a result, the perception of personal and global histories is affected. The title Sans Soleil is from the song cycle Sunless by Modest Mussorgsky, a brief fragment of which features in the film. Sans Soleil is composed of documentary footage shot by Marker interwoven with stock footage, clips from Japanese movies and shows, and excerpts and stills from other films.

In a 2014 Sight and Sound poll, film critics voted Sans Soleil the third best documentary film of all time.