Aphrenety has evolved from thrash, death, and groove metal into a black and death metal combination from Wolfsburg, the Volkswagen city, since 2021. Their name, suggesting a frenetic loss of reason, drives their Lower Saxony-bred extremity through multiple stylistic phases.

Aphrodia Okkulta is a German extreme death metal art project formed in 2018, distinguished by its rotating cast of session musicians with no fixed lineup across releases. The project combines symphonic and orchestral elements with high-tempo, aggressive death metal and German-language growl vocals across releases like Running in Circles, The Relentless Power of a Crushing Tide, and Ephemeral, explicitly positioning itself as confrontational art not intended for casual listening.

Aphyxion is a melodic death metal and metalcore band from Ribe, Denmark, formed in 2016, whose albums Aftermath, Void, and the 2023 release Ad Astra have established them as a force in the Danish underground metal scene. The band plays metal for the love of playing metal, collaborating with acts like Siamese and Chaosbay while working with producer Jonas Haagensen and mixer Jacob Hansen.

Apisonadora lives up to their steamroller name, flattening everything in their path with a death-grind assault launched from Madrid in 2015. Their grinding approach to extreme metal embodies the crushing, no-frills aesthetic the genre demands.

Apneica delivers sludge and post-metal from Sorso near Sassari in northern Sardinia since 2011. Their name, derived from apnea — the cessation of breathing — captures the suffocating weight of their island-born heaviness.

Apnia crafts gothic metal from the naval city of Portsmouth since 2019, their sleep-apnea name evoking the suffocating, breathless quality of their atmospheric compositions. Their Hampshire origins feed a darkly romantic approach to heavy music.

Apo delivers death metal from the Alsatian capital of Strasbourg since 2015, bringing brutal force to the Rhine valley's metal community. Their abbreviated name carries the directness and impact of their sonic assault.

Apocalips delivers melodic thrash metal from Timișoara since 2023. From the Banat capital that triggered Romania's liberation, they forge high-speed melodic aggression.

Barcelona's Apocalipsis has been proclaiming heavy metal since 2012, adding their voice to Catalonia's seemingly inexhaustible supply of traditional metal bands. Their sound carries the evangelical intensity their name suggests.