Oenopota schantaricum is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

The whorls are tumid, occasionally faintly angulated, occasionally rounded (most frequently the body whorl).

The sculpture consists of fine, close, undulated spiral striae and axial folds, which, in adult specimens, often, almost disappear on the ultimate whorl, whilst they, invariably, are recognised on the upper whorls.

The teeth in the radula are ensiform with a short manubrium.

[2] This marine species occurs off Japan and in the Okhotsk Sea