The music of the animated direct-to-video feature films based on the Bionicle toy line by Lego was composed by Nathan Furst and John D'Andrea. Furst composed the scores for the first three films released by Miramax & Buena Vista Home Entertainment – Bionicle: Mask of Light (2003), Bionicle 2: Legends of Metru Nui (2004), and Bionicle 3: Web of Shadows (2005) – while D'Andrea composed the music for the fourth film, Bionicle: The Legend Reborn (2009), which was released by Universal Studios.
Though the soundtracks were initially unavailable for purchase, the original scores for the first three films were released as digital albums in 2017 (over a decade after the film releases) through the label Rising Phoenix Records. There has been no official release of the fourth film's music and there are currently no known plans for one.
Aside from Cryoshell's debut album (which includes some songs originally composed to promote the toy line), the Bionicle score soundtracks are the only full-length albums of Bionicle-related music that have been commercially released.