Mytilus may refer to:
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Mytilus of Illyria
Mytilos or Mytilus ( grc, Μύτιλος; la, Mytilus; ruled 270231 BC) was an Illyrian king who reigned in southern Illyria, around the hinterland of Dyrrhachion and Apollonia. He was the successor of Monunios, and probably his son. Mytilu ...
, an ancient Illyrian king
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''Mytilus'' (bivalve), a mollusc genus
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