* Ibiza music
* Igbo music
* Ijexá
* Ilahije
* Illbient
* Impressionist music
* Improvisational
* Incidental music
* Indietronica
* Indie music
* Indie pop
* Indie rock
* Indo jazz - jazz mixed with forms of Indian music
* Indo rock
* Indoyíftika
* Industrial dance (or EBM, electronic body music)
* Industrial hip-hop
* Industrial music
* Industrial musical (also known as corporate musical)
* Industrial metal
* Industrial rock (or coldwave)
* Instrumental rock
* Intelligent dance music (IDM, also known as intelligent techno, listening techno or art techno)
* International Latin - pop ballads from various Latin countries, especially Colombia
* Inuit music - music of the Inuit
* Irish folk
* Irish Rebel Music
* Iscathamiya
* Isikhwela jo
* Island - mix of reggae,ska,latin; music sounding from the island
* Isolationist
* Italo dance
* Italo Disco - Italian nightclub music
* Italo house
* Itsmeños - folk music of the Zapotecs of Mexico
* Izvorna bosanska muzika - modernized folk music from Drina, Bosnia