Kaarnekorpi (Viking/Folk-metal)
‡ Kaatarakt (Folk/Viking Metal)
‡ Ka Gaia An (Folk-metal)
‡ Kogaion (Folk-rock/Folk-metal)
‡ Kagan (Pagan/Folk-metal)
Kalevala (Folk-rock/Folk-Metal)
‡ Kalevala H.M.S. (Folk-rock, speedfolk)
Kalaveraztekah (Folk infl. Progressive Death Metal)
Kalmah (Melodic Death Metal)
Kampfar (Pagan Black Metal)
Kanseil (Folk-metal)
Kara Han (Folk-metal)
Kazkariv (Folk-metal)
‡ Kêltikah (Folk-metal)
Kepler (Folk-metal)
‡ KerecsenSólyom (Symph. Folk-metal)
‡ Kernunna (Celtic Folk-metal)
‡ Khepra (Folk-metal)
‡ Kivimetsän Druidi (Symph. Folk-metal)
Khan (Folk-metal/Metalcore)
Khren (Folk-metal)
Knaat (Melodic Pagan Metal)
‡ Kolo Pravi (Pagan Folk-metal)
Kormak Folk-metal
Korpiklaani (Folk-metal)
‡ Korrigans (Folk Black Metal)
Kosmogonia (Folk-metal)
Kot Bayn (Folk-metal)
‡ Krampus (Folk/Death Metal)
‡ Krayenzeit (Medieval Rock)
‡ KromleK (Viking/Folk/Black Metal)
Krovavyi Rif (Folk/Pirate-Metal/Punk)
‡ KrukGard (Folk-metal)
‡ Krynitza (Folk/Folk-metal)
Kryvoda (Folk/Death Metal)
Kultasiipi (Folk-metal/Rock)
Kvasura (Folk-metal)
Kylfingar (Folk/Viking Metal)