Ignotus Enthropya is a melodic death metal band from Budapest, Hungary, active since 2014 and blending melodic harmonies with death metal aggression. The project channels the twin-guitar traditions of Scandinavian-influenced melodeath.

French musician Gautier Serre has operated as Igorrr since 2005, self-releasing demo recordings before building an internationally recognized catalog that defies genre categorization by fusing black metal, death metal, breakcore, baroque classical music, Balkan folk, and trip hop into recordings of extreme compositional density. After signing with Metal Blade Records in 2017, the project released Savage Sinusoid (2017) and Spirituality and Distortion (2020), with earlier albums Nostril (2010) and Hallelujah (2012) establishing the foundational aesthetic of abrupt tempo shifts, operatic vocals, growling, and electronic manipulation. The project has expanded into a full live band performing Serre's compositions.

Iker Manterola is a Basque Country-based solo artist active since 2023, exploring groove and death metal territory through a multi-instrumental approach. The project channels the rugged Basque landscape into visceral, riff-driven heavy music.

Ikhon is a death metal band from Ludvika, Sweden, active since 2025 and delivering uncompromising extremity through crushing riffs and guttural vocals. The project channels the relentless brutality of the genre.

Death metal band from Macclesfield in Cheshire, formed in 2022. Their sound channels death metal from the northern English silk town.

Ikonium is a melodic death metal band from Nijmegen, Netherlands, active since 2023 and blending melodic harmonies with death metal aggression. The project channels the twin-guitar traditions of Scandinavian-influenced melodeath.

Ikuori is a death/groove metal/hardcore band from Palencia, Spain, active since 2017, merging death metal's brutality with groove metal's rhythmic crunch and hardcore's raw energy. The band delivers a multi-faceted assault from the Castilian plains.

Ileus is a death metal band from Eskilstuna, Sweden, active since 1992 and delivering uncompromising extremity through crushing riffs and guttural vocals. The project channels the relentless brutality of the genre.

Ilienses Tree is a doom/death metal act from Cagliari, Italy, active since 2014 and merging death metal's ferocity with doom's oppressive weight. The project inhabits the crushing intersection where both genres converge.