Gardarika is a thrash/progressive metal band from Moscow, Russia, active since 2008 and blending the aggression of thrash with progressive complexity over more than fifteen years. The project's name references the Old Norse term for the lands of Rus.

Garden of Bones is a progressive and melodic death metal band from Stockholm, Sweden, active since 2018 and blending progressive ambition with the melodeath tradition that made Sweden famous. The project channels Stockholm's rich extreme metal heritage.

Garden of Souls is a progressive metal band from Rotterdam, formed in 2024. They bring compositional ambition to the Netherlands' second city.

Garden of Worm is a doom and progressive metal band from Kangasala, Finland, releasing through Svart Records with their 2015 album Idle Stones featuring four expansive compositions including the nearly twenty-minute epic The Sleeper. Their sound merges heavy doom riffs with psychedelic atmospheres, creating meditative journeys described by listeners as shadowy and transcendent.

Garden Wall is a progressive metal band from Cervignano del Friuli in the Udine province, active since 2015. They deliver compositionally ambitious progressive metal from the Friuli Venezia Giulia region.

Gardens of Stone is a progressive groove/sludge metal band from Barcelona, Spain, formed in 2023, combining complex progressive structures with groove and sludge metal's weight. The band brings a multi-layered, heavy approach to Barcelona's diverse metal scene.

Gargantua is a death metal and progressive metal band from Paris, France, formed in 2016, combining technical prowess with extreme metal aggression. Named after Rabelais' literary giant, their sound reflects an ambitious French approach to progressive death metal.

Gargantura is a groove metal and progressive metal band from Cergy near Paris, France, formed in 2014, blending rhythmic, headbanging grooves with progressive complexity and dynamic arrangements. Their sound merges the punch of groove metal with the ambition and intricacy of progressive composition.

Garlic is a gothic/progressive metal band from Zrenjanin, Serbia, formed in 2020. Their unusual name contrasts with their atmospheric, genre-blending approach to heavy music.