Gamma Tauri Spawn is a technical brutal death metal quartet from Aachen, Germany, formed in 2023, whose lyrical themes draw on Sumerian mythology and H.P. Lovecraft's cosmic horror. Their 2023 debut EP Vicious Gods Below features six tracks produced and mastered by Fernando Roma, citing influences from Behemoth and Nile.

Gammadion is a pagan/heavy metal band from Lublin, active since 2011. They channel pagan themes through heavy metal from the eastern Polish capital.

Gamora is a groove metal and metalcore band from Lezo in the Basque Country, Spain, formed in 2011, blending groove metal's rhythmic punch with metalcore's breakdowns. The band brings over a decade of heavy music to the Basque scene.

Gandalf is a heavy metal band from Pamplona (Etxabakoitz), Spain, formed in 2024, named after Tolkien's iconic wizard. The band delivers classic heavy metal from the Navarre capital famous for its running of the bulls.

Gandalf the Green is a stoner/doom metal band from Leeds, formed in 2016. Their Tolkien-referencing name — a decidedly more herbally inclined version of the wizard — perfectly captures the stoner doom spirit they channel from West Yorkshire.

Gandferd is a black metal project from the Vestfold og Telemark region, formed in 2022. They deliver black metal from southeastern Norway.

Gandillion is a symphonic/progressive gothic metal band from the Zoetermeer/Gouda area, formed in 2014. They deliver elaborate symphonic gothic metal from the South Holland urban corridor.

Gandr is a raw black metal project from Lappeenranta, Finland, formed in 2018, delivering stripped-down, lo-fi black metal with an unpolished and primal aesthetic. Their sound embraces the most abrasive and minimalist tendencies of the raw black metal underground.

Gandur is a black metal project from Lisbon, Portugal, formed in 2023 and forging dark extremity from the Portuguese capital. The project channels the raw aggression of black metal through an Iberian lens.