In Extremo is a German folk metal band originating from Berlin. The band's musical style combines heavy metal with medieval traditional songs, blending the sound of the standard metal instruments with traditional instruments, such as the bagpipes, harp, hurdy-gurdy and shawm.

Versions of well-known traditional/medieval ballads make up the main part of their repertoire, but increasingly over the years, the band also writes her own material using the German language, whilst the traditional songs are in a variety of languages, including (but not limited to) Spanish, English, Norwegian, Swedish, Icelandic, Irish, French, Hebrew, Latin and Old German.