- Pais, Sidónio
- Pakistan: Archontology
- Pakistan: Gazette 1953-05-29
- Pakistan: Governors-General: 1947-1956
- Pakistan: Heads of State: 1947-1956
- Pakistan: Heads of State: 1956-2024
- Pakistan: Polity Style: 1947-2024
- Pakistan: Sources
- Palau: Archontology
- Palau: Heads of State: 1981-2024
- Palau: Polity Style: 1981-2024
- Palestine: Archontology
- Palestine: Polity Style: 1988-2024
- Palestine: President of the State: 2008-2024
- Palestine: Presidents of the Palestinian National Authority: 1994-2013
- Palestine: Sources
- PALMERSTON, 3rd viscount
- Panama: Archontology
- Panama: Heads of State: 1840-1841
- Panama: Heads of State: 1903-1968
- Panama: Heads of State: 1968-2024
- Panama: Polity Style: 1840-2024
- Panama: Sources
- Panama: State Governors: 1885-1903
- Papal States: Archontology
- Papal States: Heads of State: 1814-1849
- Papal States: Heads of State: 1814-1849
- Papal States: Heads of State: 1849-1870
- Papal States: Polity Style: 1800-1870
- Papal States: Sources
- Papen, Franz von
- Papua New Guinea: Archontology
- Papua New Guinea: Constitution 1975
- Papua New Guinea: Governors-General: 1975-2024
- Papua New Guinea: Heads of State: 1975-2024
- Papua New Guinea: Polity Style: 1975-2024
- Papua New Guinea: Sources
- Paraguay: Archontology
- Paraguay: Heads of State: 1813-1870
- Paraguay: Heads of State: 1869-1940
- Paraguay: Heads of State: 1940-2024
- Paraguay: Polity Style: 1813-2024
- Paraguay: Provisional Governments: 1811-1813
- Paraguay: Sources
- Paredes y Arrillaga, Mariano
- PAVLOV, Valentin Sergeevič
- Pedro (Prince Regent of Brazil)
- Pedro I
- Pedro II
- PEEL, Robert
- Peixoto, Floriano
- PELHAM, Henry
- Pena, Afonso Augusto Moreira
- Pennsylvania: Archontology
- Pennsylvania: Colonial Governors: 1681-1776
- Pennsylvania: Notes
- Pennsylvania: Polity Style: 1681-2024
- Pennsylvania: President of the Convention: 1776
- Pennsylvania: Presidents of the Council of Safety: 1776-1777
- Pennsylvania: Presidents of the Supreme Executive Council: 1777-1790
- Pennsylvania: Sources
- PERCEVAL, Spencer
- Peru-Bolivian Confederation: Archontology
- Peru-Bolivian Confederation: Heads of State: 1836-1839
- Peru-Bolivian Confederation: Polity Style: 1836-1839
- Peru-Bolivian Confederation: Sources
- Peru: Archontology
- Peru: Heads of State: 1821-1827
- Peru: Heads of State: 1827-1836
- Peru: Heads of State: 1838-1858
- Peru: Heads of State: 1858-1872
- Peru: Heads of State: 1872-1930
- Peru: Heads of State: 1930-1980
- Peru: Heads of State: 1980-2024
- Peru: Military Authority: 1820-1821
- Peru: Polity Style: 1821-2024
- Peru: Sources
- Pessoa, Epitácio Lindolfo da Silva
- PÉTION, Jérôme
- Petrovskij, Grigorij
- Peçanha, Nilo Procópio
- Peña y Peña, Manuel de la
- Pflimlin, Pierre
- PHILIP of Spain (King of England)
- Philippines: Archontology
- Philippines: Head of Administration: 1942-1943
- Philippines: Head of State: 1943-1945
- Philippines: Heads of State: 1897-1901
- Philippines: Heads of State: 1935-1942
- Philippines: Heads of State: 1945-2024
- Philippines: Negros: Archontology
- Philippines: Negros: Heads of State: 1899-1901
- Philippines: Negros: Polity Style: 1899-1901
- Philippines: Polity Style: 1897-2024
- Philippines: Sources
- Pi y Margall, Francisco
- Pierce, Franklin
- Pinay, Antoine
- PITT, William (the Elder)
- PITT, William (the Younger)
- Pius XI :: Pio XI
- Pleven, René
- Plunkett, George count (Pluincéad, Seoirse)
- Podgornyj, Nikolaj
- Poher, Alain
- Poincaré, Raymond
- Poland: Archontology
- Poland: Commission of Government: 1807
- Poland: Heads of Government: 1917-1922
- Poland: Heads of State: 1917-1939
- Poland: Heads of State: 1944-2024
- Poland: Polity Style: 1916-2024
- Poland: Sources
- Polk, James Knox
- Pompidou, Georges
- Portes Gil, Emilio
- PORTLAND, 3rd duke of
- Portugal: Archontology
- Portugal: Government: 1918
- Portugal: Government: 1926
- Portugal: Government: 1926
- Portugal: Heads of Government: 1910-1974
- Portugal: Heads of Government: 1974-2024
- Portugal: Heads of State: 1910-1974
- Portugal: Heads of State: 1974-2024
- Portugal: Kings and Queens: 1640-1826
- Portugal: Kings and Queens: 1826-1910
- Portugal: Kings, Queens and Regents: 1140-1580
- Portugal: Kings: 1580-1640
- Portugal: Polity Style: 1815-2024
- Portugal: Royalist Governing Junta: 1919
- Portugal: Rulers: 1095-1140
- Portugal: Sources
- Portugal: Usurpation: 1826-1834
- POWLE, Henry
- Protectorate of Bohemia and Moravia: Polity Style: 1939-1945
- Protectorate of Bohemia and Moravia: Reich Protectors: 1939-1945
- Protectorate of Bohemia and Moravia: State President: 1939-1945
- Province of Canada: Archontology
- Province of Canada: Governors: 1841-1867
- Province of Canada: Polity Style: 1841-1867
- Province of Quebec: Archontology
- Province of Quebec: Governors: 1764-1791
- Province of Quebec: Polity Style: 1763-1791
- Puerto Rico: Archontology
- Puerto Rico: Polity Style: 1952-2024
- Puerto Rico: Sources
- Puerto Rico: State Governors: 1952-2024
- Pétain, Philippe
- Pétion, Jérôme
Last update: 21 Nov 2024