IronFister is a black/thrash metal act from Stavanger, Norway, active since 2016 and fusing black metal's corrosive darkness with the speed and aggression of thrash. The project delivers volatile crossover fury.

Ironopolis is a blackened death metal/grindcore act from Middlesbrough, United Kingdom, active since 2014 and merging the atmospheric darkness of black metal with death metal's crushing brutality. The project delivers fierce extremity at the crossroads of both genres.

Irrbloss is a black/folk metal band from Gothenburg, Sweden, active since 2022 and weaving traditional folk elements into extreme metal frameworks. The project bridges ancient heritage with the ferocity of modern metal.

Black/death metal band from Valladolid in Castile and León, formed in 2022. Their sound merges black and death metal from the historic Castilian capital.

Irrgott is a German black metal project formed in 2022, dealing in raw, uncompromising black metal steeped in themes of spiritual desolation. The band's name — a German term for false god or heresy — signals their blasphemous intent.

Irritert is a depressive black metal project from Moscow, Russia, active since 2024 and channeling despair and isolation through raw, emotionally charged black metal. The project explores the most sorrowful and bleak reaches of the genre.

Irrlicht are a black and gothic metal band from Innsbruck with a long history in the Austrian dark music scene, performing at events including the Wave Gotik Treffen in Leipzig and gaining attention in Switzerland through television appearances in the early 2000s. Their discography includes multiple full-lengths such as De/KadenZ (2003) and Endlich, blending cold black metal with gothic atmosphere and dark synthesizer textures.

Irrlichter is a German raw black metal/ambient project formed in 2025, dwelling in the murky intersection of lo-fi black metal and ethereal ambient soundscapes. The band's name — meaning "will-o'-the-wisps" — reflects their ghostly, flickering approach to atmospheric extremity.

Irrlycht is a black metal band from Heidelberg, Germany, active since 2013, crafting atmospheric black metal from the romantic university city on the Neckar River. The band channels the Gothic atmosphere of their surroundings into dark, immersive compositions.