Kaarnekorpi (Viking/Folk-metal)
Kaatarakt (Folk/Viking Metal)
Ka Gaia An (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)
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)