Mioawateria watsoni is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.

The rather strong shell has a turreted shape and is composed of 8 convex whorls.

The aperture is oblong, occupying just over half of the total height of the shell.

It is angular at the top and ends at the base in a short, open siphonal canal.

The color of the shell is white with the top of the spire tinted orange-yellow.