The (sometimes self-labelled as the Mighty Mongrel Mob or colloquially known as the Mob) an organised crime street gang and prison gang based in New Zealand.

"Mongrel complex", or alternatively "mutt complex", is a derogatory expression, usually used by nationalists, to refer to a supposedly "collective inferiority complex" reportedly felt by many Brazilians when comparing Brazil and its culture to other parts of the world, primarily the developed world, as the reference to a mongrel carries negative connotations attributed by Brazilians to the racist perception of most Brazilians being racially mixed as well as lacking in desirable cultural refinement.