Olivellinae, are a subfamily of small predatory sea snails with smooth, shiny, elongated oval-shaped shells, in the family Olividae.

The shells sometimes show muted but attractive colors, and may have some patterning.

[1] These animals are marine gastropod molluscs in the superfamily Olivoidea, within the order Neogastropoda according to the taxonomy of Bouchet and Rocroi.

Olivella snails are found worldwide, but mostly Ecuador in subtropical and tropical seas and oceans.

Olivella shells have a siphonal notch at the posterior end of the long narrow aperture.