Alcyone Cone (72°42′S 165°33′E / 72.700°S 165.550°E / -72.700; 165.550Coordinates: 72°42′S 165°33′E / 72.700°S 165.550°E / -72.700; 165.550) is an extinct volcanic cone near the center of The Pleiades, at the west side of the head of Mariner Glacier in Victoria Land, Antarctica. Named by a Victoria University of Wellington Antarctic Expedition field party to Evans Neve, 1971–72, after Alcyone, the brightest star in the Pleiades constellation. The geographical landform is situated on the Pennell Coast, a portion of Antarctica lying between Cape Williams and Cape Adare.