Tegula mariana is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.

Its color is dingy white, with broad radiating flames of brown or red above irregularly maculated below, sometimes nearly unicolored, pinkish, with the lirae of the base articulated with red and white dots.

The base of the shell is more or less convex, generally shows microscopic concentric striae under a lens, and has about 5 low, narrow, separated spiral lirulae.

[3] This species is thus characterized by the two angulations on the body whorl and the fine, spiral sculpture between the two keels.

[4] This species occurs in the Pacific Ocean and is common under rocks at high-tide level from Baja California, Mexico, to Peru