Perna

Perna may refer to:


 * Perna (surname)
 * Perna, Bosanska Krupa, a village in Bosnia and Herzegovina
 * Perna, Croatia, a village near Vrginmost, Croatia
 * Perna, Poland, a village in Kutno County, Poland
 * Perná a municipality and village in the Czech Republic
 * Pernå, a municipality in Finland
 * Perna caste, a Hindu caste in India
 * Perna-de-pau, a population of native Portuguese-speakers, recognized as Indians in 1993
 * Perna Krick (1909–1991), American sculptor, painter and teacher
 * Perna (bivalve), a genus of saltwater mussel
 * Perna perna, an economically important mussel, a bivalve mollusc belonging to the family Mytilidae
 * Perna canaliculus, the New Zealand green-lipped mussel
 * Perna viridis, the Asian green mussel