Rain Eyes is a death metal/deathcore band from Leeds in West Yorkshire, England, formed in 2020. The band delivers heavy, breakdown-laden extreme metal from the major city in northern England.

Rancunes is a deathcore band from Dunkirk on the northernmost coast of France, formed in 2025. The band delivers heavy breakdowns from the industrial port city near the Belgian border.

Rayz is a deathcore/death metal band from Fuenlabrada near Madrid, Spain, formed in 2021. The band delivers punishing breakdowns and extreme vocals from Madrid's southern metropolitan area.

Technical deathcore act from the Weinviertel region of Lower Austria, Reanima was active from 1999 to around 2013 and focused their lyrical content on themes of humanity, ignorance, and despotism. Their 2012 album Great Whore of Babylon stands as their defining statement within the Austrian extreme metal underground.

Rectal Terror is a brutal deathcore act from Minsk, Belarus, emerging in 2025 as part of the city's growing extreme metal underground. The project channels punishing breakdowns and guttural vocals characteristic of the genre's most uncompromising strain.

Red Means No Mercy is a brutal deathcore band from Kassel in northern Hesse, Germany, formed in 2018. The band delivers punishing breakdowns and extreme vocal performances as part of Kassel's active extreme metal scene.

Redound is a death metal/deathcore band from Sofia, Bulgaria, active in the city's underground extreme metal and hardcore crossover scene. Vocalist Ivan of Redound contributed guest appearances on tracks from Sofia metallic hardcore band Rugged's 'Godless Days' EP (2022), reflecting the interconnected nature of the local scene.

Repulsed is a thrash metal and deathcore band from Prague, Czech Republic, formed in 2022 and merging the speed of thrash with the breakdowns and brutality of modern deathcore. The project adds to Prague's thriving extreme metal underground.

Esch-sur-Alzette deathcore act formed in 2014, one of Luxembourg's few representatives in the extreme metal underground. Their punishing breakdowns and aggressive delivery carry the genre's flag from the Grand Duchy.