Nationalist Social Democrat Party

Peru
This article is part of a series on the politics and government of Peru
Constitution
Executive President of Peru Martín Vizcarra First Vice President of Peru Mercedes Aráoz Prime Minister of Peru César Villanueva  •  Cabinet  •  Ministries
Legislature Congress of the Republic President Luis Galarreta
Judiciary Supreme Court of the Republic President Duberlí Rodríguez  •  Superior Courts of Justice  •  Courts of First Instance  •  Courts of Peace
Autonomies National Council of the Magistrature Constitutional Tribunal Public Ministry Office of the Public Defender (Ombudsman) Comptrollership General Financial superintendence (SBS) Central Reserve Bank
Elections Electoral system Electoral Processes (ONPE) Jury of Elections (JNE) National Registry (RENIEC) Political parties APRA Nationalist UPP PPC National Renewal Cambio 90 Sí Cumple Popular Action Possible Peru National Restoration
Administrative divisions Regions (regional governments) Municipalities Provinces Lima Province Districts
Other countries Atlas

Nationalist Social Democrat Party (in Spanish: Partido Social Demócrata Nacionalista) was a political party in Peru founded in 1968 by a dissident fraction of general Manuel A. Odría's Unión Nacional Odriísta. PSDN was led by Julio de la Piedra.