"Do They Know It's Hallowe'en?" is a charity single inspired by "Do They Know It's Christmas?". It was released on October 11, 2005 in Canada on Vice Records by a cast of rock artists and other performers under the name "North American Hallowe'en Prevention Initiative" (NAHPI). It reached number four on the Canada pop chart.
Like its inspiration, it is a charity song, with all proceeds being donated to UNICEF. According to the official press release, the song "stems from a frustration with other benefit songs' misguided, somewhat patronizing attitude, and Western-centric worldview."