The Istalian Liberal Party (Istalian: Partito Liberale Istaliano, PLI) is a liberal political party in Istalia. The current party's leader is Mattia Melandri, who replaced Daniele Mari as national secretary after the 4091 leadership election. He is the third leader of the party from its foundation. The party was founded on 14 January 4077 by a group of economists to run for the 4078 general election.