Athens' Aherusia weave Greek folk elements into black metal's fabric, named after the river in Greek mythology that flows through the underworld. Since 2017, they've created a distinctive fusion that honours both Hellenic musical heritage and the ferocity of extreme metal.

Aistvara explores progressive folk metal from Vilnius since 2018, their Lithuanian name connecting to Baltic pagan tradition. From the Lithuanian capital, they blend folk instrumentation with progressive structures rooted in the country's pre-Christian heritage.

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.

A self-styled "troll metal" band from Wavre formed in 2005, combining black and folk metal with fantasy storytelling centered on the village of Aktarum. They have opened for Finntroll, Ensiferum, Arkona, and Turisas, and their releases include Gang of Trolls (2009), Ragnatroll (2018), and Trollvengers (2022) on Art Gates Records.

Akys has evolved from blackened doom metal into dark ambient and neofolk from Vilnius as of 2025. Their stylistic metamorphosis mirrors a journey from metal extremity into more contemplative, acoustic-based darkness.

Al Andalus is an instrumental symphonic and folk metal project from Dresden, Germany, weaving Oriental melodies and orchestral arrangements into heavy metal compositions inspired by medieval Iberian history. Their 2016 Granada EP traces the arc of the Reconquista through six tracks, released on the 555th anniversary of the Treaty of Granada that ended Islamic rule on the Iberian Peninsula.

Alator has channeled folk metal from Milan since 2001, making them one of Italy's longest-running practitioners of the style. Named after a Celtic deity associated with hunting, their two-decade body of work draws from pre-Roman traditions filtered through Lombard metal sensibilities.

Alburnum blends atmospheric and folk black metal from an undisclosed Dutch location since 2022. Their botanical name — referring to the living wood just beneath tree bark — suggests organic, forest-connected black metal.

Originally formed as Battleheart in Perth, Scotland, Alestorm became the world's premier pirate metal band by fusing folk metal and power metal with rum-soaked, seafaring lyrics. Signed to Napalm Records since 2007, Christopher Bowes and crew have built an international following with albums like "Captain Morgan's Revenge" and their signature brand of "True Scottish Pirate Metal."