Oenopota rosea is a species of sea snail, a marine gastropod mollusc in the family Mangeliidae.
According to J.Tucker, this species is a synonym of Oenopota harpularius, itself a synonym of Propebela harpularia (Couthouy, 1838)
This marine species is circumboreal and also occurs off Alaska, Simeonoff Island to San Juan Islands, Washington, USA.