Turbo cornutus, common name the horned turban, is a species of sea snail, marine gastropod mollusk in the family Turbinidae.

[1] The scientific name Turbo cornutus, literally means "horned turban," and it is characterized by a hard, ventricose, spiny, imperforate shell of which the length varies between 65 and 120 mm (2+1⁄2 and 4+3⁄4 in).

The body whorl is ventricose, somewhat bicarinate, armed about the middle with two spiral series of erect tubular spines, and frequently a smaller accessory row above.

Larvae have a very short period as free-floating plankton at approximately five days, after which they settle and begin to develop a shell.

The planktonic and early shell-growing stages are highly dangerous times for young horned turban shells, and they are eaten in large numbers.