Gabriel the Poet of Doom is a symphonic metal project from Castellarano in the Reggio Emilia province, formed in 2016. Their literary moniker signals the dramatic, narrative approach of their symphonic metal from Emilia-Romagna.

Galathea is a symphonic power metal band from Moscow, Russia, formed in 2021 and weaving orchestral grandeur with powerful metal songwriting. The project merges bombastic arrangements with soaring vocal performances.

Gallia is a five-piece symphonic metal ensemble from Stevoort, Belgium, formed in 2019 and built around layered orchestral arrangements and powerful vocal melodies. Their releases include the albums Obscura and Everflame, establishing them as a rising act in Belgium's symphonic metal scene.

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.

Gate XIII is a symphonic metal/orchestral project from Londonderry in Northern Ireland, active since 2012. They bring orchestral grandeur and symphonic metal ambition to the northwest Irish city.

Gates of Chaos is a symphonic power metal band from Rome, formed in 2017. They deliver orchestrally enhanced power metal from the Italian capital.

Gates of Paris is a symphonic metal project from Nice, France, formed in 2018 by guitarist Remch Carrayrou of Kerion, featuring vocalist Raphael Dantas and drummer Damien Rainaud of Once Human. Their self-titled concept album explores Parisian landmarks and history across twelve tracks with guest musicians from Adagio, Heavenly, and Fairyland.

Gemini Abyss is a symphonic power metal band from Lodz, active since 2013. They deliver orchestrally enhanced power metal from central Poland's largest city.

Gentihaa is a symphonic death/black metal band from Athens, formed in 2019. They pair orchestral grandeur with extreme metal intensity from the Greek capital.