Raphitoma atropurpurea is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
The length of the shell varies between and .
The monochrome dark brown shell has a somewhat elongated, fusiform shape. The spire is long but not very acuminate. The shell contains 10 convex whorls, separated by a rather impressed suture. The body whorl is rounded and is attenuated progressively downwards. The whorls show narrow, close, prominent ribs intersected by decurrent, narrow, prominent, regular and continual striae, forming a regular reticulation.
This marine species occurs in the Mediterranean Sea off Southern France and Corsica.