G-Hud is a thrash/death/groove metal band from Rzeszow in southeastern Poland, formed in 2015. They blend three aggressive genres from the Podkarpacie region.

G-nomes is a thrash metal band from Saint-Lo in Normandy, France, formed in 2014, with releases including Français Moyen, Pensées Primitives, and Nouveau Départ. Their French-language thrash delivers the genre's aggressive riffing and velocity with a distinctly Gallic identity.

G.P.I. is a death/thrash/industrial metal band from Coleraine in Northern Ireland, active since 2006. They fuse industrial textures with death and thrash metal aggression from the north coast of Ireland.

Gabrijel Gospocic is a thrash metal solo artist from Zagreb, Croatia, active since 2018. He delivers riff-driven thrash metal from the Croatian capital.

Gabryel is a groove/thrash metal band from Krakow, active since 1999. Over a quarter century from Poland's cultural capital, they have delivered rhythmically driven thrash and groove metal.

Gae Bolga is a Belgian thrash metal act from West Flanders, active since 2000, whose founder also works across classical and varied popular music under the Gaë Bolg name, drawing on Breton mythology and philosophy. Their catalog includes releases like La ballade de l'Ankou and John Barleycorn Must Die, blending metal aggression with eclectic, folklore-steeped themes.

Gaias Lycan is a power/thrash metal band from Athens, formed in 2017. They fuse the melodic grandeur of power metal with thrash aggression from the Greek capital.

Gallina Negra is a progressive thrash metal band from Tiszaujvaros, Hungary, active since 1999. Over a quarter century, they have delivered technically ambitious thrash metal from the industrial city in eastern Hungary.

Gallower is a black/thrash metal band from Tychy in Silesia, formed in 2015. They fuse black metal darkness with thrash velocity from the industrial south.