Cymbium is a genus of sea snails, marine gastropod mollusks in the family Volutidae.

The spire is short, the protoconch is large, globular, deciduous, when present forming an obtuse papillary apex.

The few whorls form a flat edge round the protoconch.

The aperture is oblong and wide The columella shows several oblique plaits.

Species within the genus Cymbium include: This Volutidae-related article is a stub.