Not My Responsibility is a 2020 American short film written and produced by singer-songwriter Billie Eilish. A commentary on body shaming and double standards placed upon young women's appearances, it features a monologue from Eilish about the media scrutiny surrounding her body. The film is spoken-word and stars Eilish in a dark room, where she gradually undresses before submerging herself in a black substance.

The film premiered during Eilish's Where Do We Go? World Tour on March 9, 2020, as a concert interlude, and was released online on May 26, 2020. Critics gave positive reviews, praising the commentary and tone, which they considered empowering. The film's audio was later included as a song on Eilish's second studio album, Happier Than Ever (2021). Some music journalists described it as the album's thematic centerpiece; others questioned its appearance on the tracklist, feeling that it lost its emotional impact without the visuals.