Gaai is a psychedelic stoner metal/rock band from Amsterdam, formed in 2020. They deliver hazy, psychedelic stoner metal from the Dutch capital.

Gallileous is a stoner/doom metal band from Wodzislaw Slaski in Silesia, active since 2008. They have evolved from funeral doom through stoner/doom to psychedelic stoner rock, reflecting a constantly shifting sonic vision from the southern Polish coalfields.

Gallons of Mud is a stoner/sludge/doom metal band from Cologne, Germany, formed in 2011, driven by a self-described passion for Sabbath riffs, slow movements, and infectious grooves. Their 2018 full-length God Bless & Fuck You was recorded and mixed by bassist Steve Albino, delivering seven tracks of doomy, groove-laden stoner metal.

Gamdøden is a stoner/doom/sludge metal band from Helsingborg, Sweden, formed in 2022 and dealing in heavy, low-end punishment from the Øresund coast. The project merges three crushing genres into a single monolithic assault.

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.

Gas Giant is a stoner/doom metal band from Amsterdam, active since 2000. Over two-and-a-half decades of massive stoner doom from the Dutch capital make them one of the country's most enduring heavy acts.

Gate 9 is a doom/heavy/stoner metal band from Horten on the Oslofjord, active since 2002. Over two decades of doom and stoner metal from the Vestfold coast make them one of Norway's most enduring acts in the genre.

Gaupa is a psychedelic doom/stoner metal band from Falun, Sweden, active since 2018 and blending mind-expanding psychedelia with crushing doom from the Dalarna region. The project channels Swedish heavy music's most adventurous impulses.

Kaliningrad-based sludge and stoner metal outfit formed in 2015, delivering low-tuned heaviness from Russia's Baltic exclave. Their fuzz-drenched sound channels the hypnotic repetition and crushing weight central to the sludge and stoner traditions.