Perrona is a genus of sea snails, marine gastropod mollusks in the family Clavatulidae.

The outer lip shows a wide shallow sinus near the middle.

The inner lip has a thick callosity at the hind part near the suture.

The species of Perrona are smooth and solid shells with a notch in the middle of the outer lip.

The hind part of the body whorl is gibbous, and the columella, as in that genus, is callous posteriorly.