Gravis is a heavy/folk metal band from Miedzyrzec Podlaski in the Lublin Voivodeship, formed in 2021. They blend heavy metal with folk elements from the eastern Polish countryside.

Grayblack is a heavy metal band from Helsinki, Finland, formed in 2018, delivering straight-ahead metal with the directness and power that define the genre. Their sound is rooted in the foundational heaviness of traditional heavy metal.

Graywitch is a heavy metal band from Thessaloniki, formed in 2021. They bring classic heavy metal to Greece's second city.

Great Voyager is a heavy metal band from the Nikaia/Piraeus area near Athens, formed in 2018. They deliver adventurous heavy metal from the harbor district of the Greek capital.

Green King is a four-piece heavy metal and doom band from Helsinki, Finland, formed in 2017, self-described as 'beer fueled stoner and heavy metal for all the trippers, tokers, hippies and followers of the left-hand path.' Their 2022 debut Hidden Beyond Time on The Sign Records spans galloping 1970s-80s metal riffs, stoner-infused adrenaline, and folk-inspired melodies across eight tracks.

Green Sleeves is a heavy metal band from Vetlanda, Sweden, active since 2012 and delivering classic heavy metal from the Småland interior. The project channels the timeless traditions of the genre.

GreenBack is a heavy metal band from Hamburg, Germany, formed in 2017, delivering traditional metal from Germany's second-largest city. The band brings classic heavy metal energy to Hamburg's storied music scene.

Gremio is a heavy and progressive metal band from Alcázar de San Juan in central Spain, formed in 2024, blending dense sonic textures with an experimental approach. Their sound merges heaviness with progressive ambition across genre-bending compositions.

Greydon Fields is a heavy/thrash metal band from Essen, Germany, formed in 2013, combining classic heavy metal anthems with thrash aggression from the heart of the Ruhr Valley. The band brings a dual-genre approach to Essen's metal scene.