Defier is a thrash/speed metal band from Hämeenlinna, Finland, active since 2013. They deliver blistering speed and thrash metal from central Finland.

Defilade is a melodic black metal band from Athens, Greece, formed in 2017. The band merge melodic sensibility with black metal intensity in their Hellenic extreme metal output.

Defiled Serenity plays melodic death metal from Loimaa in southwestern Finland, formed in 2022 and exploring the tension between beauty and corruption that their name implies. Their music defiles the serenity of melody with death metal's harsh vocals and heavy riffs.

Defiled Souls is a death/groove metal band from Schrobenhausen, Germany, formed in 2024. They combine death metal's brutality with groove metal's rhythmic power.

Defilementory is a brutal death metal band from Roskilde, Denmark, active since 2014. They deliver savage brutal death metal from one of Denmark's most historic cities.

Define is a heavy metal band from Valkeala, Finland, formed in 2016. They play defined, riff-driven heavy metal.

Definer plays melodic death metal from Syktyvkar in the Komi Republic, formed in 2025 and seeking to define their place in the growing Arctic metal scene. Their name's declarative quality drives compositions that establish boundaries through melodic precision.

Definition of Insanity is a melodic heavy metal band with death metal elements from Bremerhaven, Germany, formed in 2022. They blend heavy metal melody with death metal's extreme edge.

Defision is a groove metal band from Alexandroupoli, Greece, formed in 2013 as an evolution of a prior jam project. Their 2016 debut A Thousand Bullets, recorded at Music Temple Studio with Doukas Siskopoulas, features four tracks of riff-driven groove metal with socially conscious themes.