Obesotoma laevigata is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

(Original description) The short, stout shell consists of four or five robust whorls.

This very peculiar little shell is of a solid and rugged aspect, even living specimens looking as if beach-worn and dead.

Living specimens sometimes present no revolving lines, while others show excessively fine ones.

[2] This marine species occurs off Greenland, Iceland and in the Western Mediterranean Sea.