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

The heavy and solid, elevated shell is minutely perforate and has a conoidal shape.

The base of the shell is somewhat flattened, deeply eroded in front of the aperture.

The short columella is oblique and distinctly tridentate at the base.

[2] This marine species occurs in the Pacific Ocean from Peru to Chile.