Miller Spur (Bulgarian: рид Милер, ‘Rid Miller’ \'rid 'mi-ler\ is the narrow rocky ridge of elevation decreasing from 1700 to 900 m, projecting from Detroit Plateau 2.9 km west-northwestwards into upper Cayley Glacier on Danco Coast in Graham Land, Antarctica. The ridge is named after the German geologist Hubert Miller, researcher at St. Kliment Ohridski base in 2001/02 season, for his support for the Bulgarian Antarctic programme.