NSBM, which is short for National Socialist Black Metal is a politically-charged, controversial variant of black metal, with bands covering National Socialism, Paganism, pride for one's homeland, separation of nationalities (or "ethnic cleansing") and general far or extreme right-winged views. It should also be noted that not all NS bands are racist, as in pushing that their race is superior to others. The sound itself is different from normal black metal as well, with bands often incorporating ethnic music (as expressed in folk metal and pagan metal). NSBM does not fit into normal black metal or white power music circles.

The genre was pioneered by the band Absurd in the 90's, who mixed black metal with oi! (noticeably in their early work) and political philosophies.