Bands by letter: R
- Racer X
- Radakka
- Radiation 4
- Rage
- Raging Speedhorn
- Ragnarok (UK)
- Ragnarok (NOR)
- Railway
- Rain
- Rainbow
- Rain Fell Within
- Raintime
- Raise Hell
- Rake Sodomy
- Rakoth
- Rammstein
- Rampage (AUS)
- Randy Rampage
- Rampage (USA)
- Ram-Zet
- Random Damage
- Randy Ellefson
- Rapid Fire
- Rapture
- Rata Blanca
- Ratt
- Raud-Ants
- Raunchy
- R.A.V.A.G.E. (Raging Atheists Vowing A Gory End)
- Raven Black Night
- Raven (FIN)
- Ravengod
- The Ravenous
- Ravensfall
- Ravenshead
- Raventhrone
- Raven (UK)
- Rawhead Rexx
- Razer
- Razor
- Razor of Occam
- Reading Zero
- Realm
- Rebaelliun
- Rebel Meets Rebel
- Reckless
- Reckoning
- Reclusiam
- Reclusion
- Red Box
- The Red Chord
- Redeemer
- Redemption
- Red Harvest
- Redkey
- The Red Shore
- Red Tide
- Red Wine
- Refused
- Regurgitate
- Reino Ermitaño
- ReinXeed
- Remasculate
- Renacer
- Renaissance Evil
- Renegade
- Reptilian
- Repudilation
- Requiem
- Requiem Aeternam
- Resection
- Resurrection
- Resurrecturis
- Reverend
- Reverend Bizarre
- Reviolence
- Reviver
- Revoltons
- Revolution Renaissance
- Rex Mundi
- Rhapsody
- Rhapsody of Fire
- Ribspreader
- Richard Andersson
- Richard Andersson's Space Odyssey
- Riff
- Rigor Mortis
- Ring of Fire
- Riot
- Ripping Corpse
- Rising Faith
- Ritual Carnage
- Rituals of the Oak
- Rivendell
- Riverside
- Marc Rizzo
- Roadside Burial
- Rob Zombie
- Rock Goddess
- Rob Rock
- The Rods
- Rok
- Roland Grapow
- Romantic Love
- Michael Romeo
- Rompeprop
- Rondinelli
- Ron Jarzombek
- Root
- Rotting Christ
- Rottrevore
- Rough Cutt
- Rough Silk
- Royal Anguish
- Royal Hunt
- Rude Awakening
- Jordan Rudess
- Kari Rueslåtten
- Ruffians
- Ruin
- Ruins
- La Rumeur des Chaînes
- Rumors of Gehenna
- Rumpelstiltskin Grinder
- Rune
- Runemagick
- Running Wild
- Rush
- Russell Allen's Atomic Soul