Gears of Doom is a heavy/southern metal band from Venice, active since 2011. They channel the groove-laden heaviness of southern metal from one of Italy's most culturally distinctive cities.

Gebbeth is a heavy/thrash metal band from Wroclaw, active since 2012. They deliver classic thrash and heavy metal from the Lower Silesian capital.

Gee Harliquin is a heavy metal artist from Stafford in the West Midlands, active since 2014. He delivers classic heavy metal from the Staffordshire county town.

Geisha is a heavy metal band from Copenhagen, Denmark, active since 2002, with over two decades of traditional metal output. The band is a veteran presence in the Copenhagen heavy metal underground.

Generation Steel is a German heavy metal band from Wetzlar, formed in 2021, self-described as "German Heavy Metal powerhouses" with a catalog including The Eagle Will Rise, Lionheart, Steelers, and Limitless. The band maintains an active live schedule across Germany and is working toward a new album in 2026.

Generator are a heavy metal band from Stockerau in Lower Austria, currently active and operating as an independent act in the Austrian metal underground. Little of their recorded output has circulated widely, placing them firmly in the self-released, grassroots tradition of Austrian regional heavy metal.

Gengis Khan is a heavy metal band from Bologna, formed in 2019. Named after the Mongol conqueror, they deliver commanding heavy metal from the Emilia-Romagna capital.

Genius Ultor is a black/heavy metal band from Mielec in southeastern Poland, active since 2010. They have evolved from pure black metal into a hybrid of black and heavy metal from the Podkarpacie region.

Genocide are a heavy/thrash metal band from Vorarlberg, Austria, whose Bandcamp page is shared with the American death metal act Genocide Pact—the two are unrelated. The Vorarlberg outfit works in a classic thrash and heavy metal mold typical of the Austrian regional underground scene.