The music for the role-playing video game series Ni no Kuni, developed by Level-5 and published in Western regions by Bandai Namco Entertainment, is primarily composed by Joe Hisaishi and performed by the Tokyo Philharmonic Orchestra. Hisaishi, known for his previous work on Studio Ghibli films, agreed to work on the games after witnessing the development team's passion for the project. He aimed to make the music reflect the fantasy genre, creating a compatibility between the soundtracks and the game worlds.
An album titled Ni no Kuni: Shikkoku no Madoushi Original Soundtrack was released in Japan in February 2011, featuring music from Ni no Kuni: Dominion of the Dark Djinn. A two-disc soundtrack was later released in March 2013; the first disc is a re-release of the Japanese soundtrack, while the second disc contains additional tracks from Ni no Kuni: Wrath of the White Witch. Critical reception to the soundtracks have been positive, as reviewers felt that the music for the first two games connected appropriately with the gameplay, with critics stating that Hisaishi's contributions matched the art style by Studio Ghibli. Hisaishi would later return to compose for Ni no Kuni II: Revenant Kingdom, with its soundtrack releasing in June 2018.