Aesopus obesus, common name the fat dovesnail, is a species of sea snail, a marine gastropod mollusc in the family Columbellidae, the dove snails.

(Original description in Latin) The smotth shell is obese and awl-shaped.

It is white, adorned with pale longitudinal brown spots.

It features minutely ribbed longitudinal patterns towards the apex.

The aperture is very small, and the columella is slightly excavated and truncated.