Agnus Dei are a symphonic doom metal band from Pilsen, Czech Republic, originally formed in 1993 and revived in 2017, whose early demo "Garden of Sorrow" (1995) and soundtrack contribution "Tam Dole" (1997) placed them among the first Czech acts to combine doom metal with orchestral elements. The band appeared on the Breath of Doom compilation in 1997 and performed at the Dynamo Festival in Plzeň.

Agoria blends black and doom metal from Riihimäki since 2011, creating compositions that shift between blast-beat fury and crushing slowness. Their dual-genre approach spans the extremes of tempo within Finnish underground metal.

Ailment channels funeral doom metal from Lublin since 2017. Their sickness-themed name drives glacially paced compositions of profound suffering from eastern Poland's university city.

Aisumasen channels sludge and doom metal from Gothenburg since 2017. Their Japanese-derived name — meaning 'I'm sorry' — adds an unexpected East Asian politeness to the crushing weight of their Swedish sludge doom.

Aivvass is a German occult folk doom metal band whose releases Occult Rites I and Occult Rites II channel pagan and esoteric themes through crushing doom riffs layered with folk instrumentation. The band's thematic focus on ritualistic subject matter gives their work a cohesive, atmospheric identity rooted in the occult doom tradition.

Aiwaz is a gothic doom metal band from Dortmund, Germany, formed in 2017, drawing on dark, melancholic heaviness with gothic overtones. The band explores themes of shadow and mysticism within the framework of slow, crushing doom metal.

Ajabur is a two-piece black/doom metal band from Dresden, Germany, consisting of S. on guitars and vocals and C. on drums. Their releases, including the 2023 self-titled session EP and the 2025 session album Transmissions, embrace a deliberately raw, lo-fi aesthetic described as relentless and without compromise, with the band donating a portion of their merchandise proceeds to social care organizations.

Akasava delivers doom metal from the Norman port of Le Havre since 2015, named after the character from the horror film classic. Their cinematic inspiration feeds slow, crushing compositions drawn from the Seine estuary's grey, industrial atmosphere.

Akelei crafts atmospheric doom metal from Delft since 2008, named after the Dutch word for columbine flowers. From the city of Vermeer and blue pottery, they create patient, contemplative doom of botanical beauty.