Buccinum humphreysianum, common name Humphrey's buccinum, is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks.

Its color is of a reddish white, marked with undulated brown spots with red edges.

These are traversed sometimes by slightly prominent longitudinal folds.

The aperture is very effuse, dilated outwardly and widely emarginated at its base.

It is circumboreal and also found off Japan, North America and Western Europe.