Plutonaster is a genus of echinoderms belonging to the family Astropectinidae.

The genus has almost cosmopolitan distribution.

Species:

• Plutonaster agassizi (Verrill, 1880)
• Plutonaster ambiguus Sladen, 1889
• Plutonaster bifrons (Wyville Thomson, 1873)
• Plutonaster complexus H.E.S Clark & D.G.McKnight, 2000
• Plutonaster edwardsi (Perrier, 1882)
• Plutonaster efflorescens (Perrier, 1884)
• Plutonaster fragilis H.E.S.Clark, 1970
• Plutonaster hikurangi H.E.S Clark & D.G.McKnight, 2000
• Plutonaster intermedius (Perrier, 1881)
• Plutonaster jonathani H.E.S Clark & D.G.McKnight, 2000
• Plutonaster keiensis Döderlein, 1921
• Plutonaster knoxi Fell, 1958
• Plutonaster sirius A.H.Clark, 1917

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