• Baldrs Draumar (Folk/Viking Metal)
• Balkandji (Heavy / Folk-metal)
• Balt Hüttar (Folk-metal)
• ‡ Balyios (Melodic Folk-metal)
• Barad Guldur (Folk-metal)
• Baradj (Post folk-rock/ post folk-metal)
• Barbarian Warriors in search of Wisdom (Pagan Folk Metal)
• Barbar’O’Rhum (Folk-Rock)
• Barbar Punk (Folk-punk)
• Barloventos (Folk/Power Metal)
• ‡ Bastion (Pagan / Folk-Metal)
• ‡ Battleheart (Folk Power Metal)
• Battlelore (Symphonic Epic Metal)
• Battlesoul (Folk/Celtic trashmetal)
• Battle Tales (Folk-metal)
• Baumbart (Folk-metal)
• Beast Impalor (Death/Folk-metal)
• ‡ Beer Bear (Folk-metal)
• ‡ Belegost (Folk-metal)
• Belenos (Black Metal)
• Bellfast (Folk-metal)
• ‡ Bergatagen (Trollish Black Metal)
• Bergsvriden (Black / Folk-metal)
• Biersbreaker (Folk-metal)
• ‡ Bifröst (Epic Pagan Metal)
• Black Corsair (Folk / Power Metal)
• Black Kirin (Black/Folk-metal)
• ‡ Black Leaves (Folk/Gothic Metal)
• ‡ Black Lotus (Black/Folk Metal)
• Black Magic Fools (Mittelalter Folkrock)
• Black Messiah (Black/Folk Metal)
• ‡ The Black Tartan Clan (Celtic Punk)
• ‡ Black Velvet Band (Folk-metal)
• ‡ Blackwolf (Folk-metal)
• Blodiga Skàld (Folk-metal)
• Blood or Whiskey (Folk-punk)
• Bloodshed Walhalla (Epic Viking Metal)
• ‡ The Bloody Irish Boys (Folk Punk)
• Bloodywood (Folk infused metal)
• Bodh’aktan (Celtic Punk)
• Boisson Divine (Folk-metal)
• ‡ Bolero (Pagan/Folk/Black Metal)
• ‡ Boombaard (Folk-metal)
• ‡ Bor (Epic Pagan Folk-metal)
• ‡ Borean Dusk (Prog Metal/Folk)
• Borknagar (Black/Prog/Viking/Folk Metal)
• ‡ Bostonskoe Chaepitie (Folk-punk)
• Boyanov Gimn (Folk-metal)
• Brachmond (Medieval Rock/Metal)
• ‡ Bran Barr (Celtic Folk/Black Metal)
• ‡ Bretheren (Folk/Black/Death metal)
• ‡ Brethren (Folk/Black/Power metal)
• ‡ Brezno (Folk-metal)
  Briselas (Folk-metal)
• ‡ Brotherhood (Folk-rock / Folk-metal)
• Brutus’ Daughters (Punk/Folk)
• Brymir (Pagan/Folk Metal)
• ‡ Buaiteoir (Folk-metal)
• Bucium (Folk-rock/fok-metal)
• Bucovina (Folk-metal)
• Bunch Of Bastards (Celtic Punk)
• Burden of Ymir (Folk influenced metal)
• Butterfly Temple (Pagan/Doom Metal)