Glädjekällor is a black metal band from Malmö, Sweden, active since 2011 and whose name ironically means "sources of joy" in Swedish, channeling anything but joy through raw, aggressive black metal. The project delivers dark extremity from southern Sweden.

Gluuth is a black metal trio from Winterthur, Switzerland, formed in 2016, who describe themselves as the "second wave of 8400 black metal" with tongue-in-cheek grimness. Their self-titled 2016 debut was recorded live in two days and pressed on a limited run of twenty hand-manufactured pink cassettes reportedly "overdubbed at midnight next to a burning church."

GM-1 is a raw black metal project from Santander, Spain, formed in 2016, delivering lo-fi, stripped-down black metal from the Cantabrian coast. The project channels cold, uncompromising rawness from northern Spain.

Gmer is a raw black metal project from Poland, formed in 2026. They represent the newest addition to Poland's vast black metal underground.

Gnaargakh is a German black metal project formed in 2020, with an extensive catalog of solo and collaborative releases including splits with Graf and Incestum. Their releases Erzleichnam, Schmerzend Seelenfeuer, and Zhymorkh explore dark, occult territory with German-language titles reflecting themes of soulfire and cosmic calamity.

Gnadenthron is a German viking/black metal project formed in 2024, whose name translates to "throne of mercy." The project blends Norse-themed viking metal with black metal aggression.

Gnarled Hands is a blackened death metal project from Scotland, formed in 2025. They bring punishing blackened death metal to the Scottish extreme underground.

Gnarparfarlen is a German black metal and grindcore project active since 2009, fusing the tremolo-picked fury of black metal with grindcore's chaotic brevity. The project operates at the volatile intersection of two of extreme metal's most intense subgenres.

Gnaw Their Tongues is a black metal/noise/experimental project from Smallingerland in Friesland, active since 1991. Over three decades of horrifying, boundary-obliterating music that fuses black metal with harsh noise, industrial, and dark ambient have made sole creator Maurice de Jong one of the most singular figures in extreme music worldwide.