Perrona obesa, common name the obese turrid, is a species of sea snail, a marine gastropod mollusk in the family Clavatulidae.

[1][2] The size of an adult shell varies between 35 mm and 55 mm.

The whorls are corded below the suture, with a constriction below the cord.

The color of the shell is yellowish white, flexuously lineated with chestnut, the corded portion white.

[3] This species occurs in the Atlantic Ocean off Angola.