Patella aspera is a species of limpet, a type of sea snail in the family Patellidae. Long considered to be a subspecies of Patella ulyssiponensis, genetic evidence supports its recognition as a separate species. It is native to Macaronesia. It is known by the common name Azorean limpet, and its local name is lapa brava. This species lives on rocks in the shallow sublittoral and intertidal zones. It is a keystone species which is of ecological importance as a grazer.