The Peloponnesian Folklore Foundation ‘Vas. Papantoniou’ or PFF (Greek: Πελοποννησιακό Λαογραφικό Ίδρυμα also known as ΠΛΙ) is a nonprofit cultural institution and museum based in Nafplion, Greece. It was founded in 1974 by the folklorist and scenic designer Ioanna Papantoniou in memory of her father Vasilios Papantoniou. The aim of PFF is the research, preservation, study and presentation of the material culture of the Greeks.