Black band or Blackband may refer to:

Black armband, a signifier that the wearer is in mourning Black Band (anarchism), groups of militant anarchist miners Black band disease, a coral disease Black Band (landsknechts), a formation of 16th century mercenaries Blackband, Ohio, an unincorporated community in Tuscarawas County Black Band (resistance group), a German anarcho-syndicalist paramilitary organization Black Bands, a company of Italian mercenaries formed and commanded by Giovanni de' Medici during the Italian Wars Black (Bangladeshi band), a Bangladeshi rock band

See also Black Hand (disambiguation)