‡ Iahsari (Melodic/Folk-metal)
‡ Icarian (Heavy/Folk-metal)
Idaslet (Folk/Viking metal)
‡ Ifing (Black/Folk-metal)
Ignis fatuu (Folk-metal)
Ikael (Folk-rock)
‡ Illdåd (Folk-metal)
‡ Illuminandi (Christian Folk-metal)
Ilmarinen (Folk-metal)
‡ Impius Mundi (Medieval Rock)
Incantatem (Folk-metal)
Incursed (Epic Viking Metal)
In Extremo (Folk/Medieval Rock)
In Ora Mundi (Folk/Medieval Rock)
Infinitas (Folk Heavy Metal)
Ingrimm (Folk/Medieval Metal)
‡ Inis Gwenva (Black/Folk-metal)
Irish Moutarde (Celtic Punk/Rock)
Irminsul (Pagan/Viking/Folk Metal)
‡ Irrbloss (Black Viking/Folk-metal)
Isakoatl (Folk/Heavy metal)
Isatha (Folk-metal)
‡ Isengard (Folk Black Metal)
Isenmor (Folk-metal)
‡ Ithilien (Melodic Folk-metal)
Ivan Tzarevich (Epic/Folk Metal)
Izmoroz (Pagan/Folk/Black Metal)