- Pabst, Christian Wilhelm
- Pabst
- Pacchiarotti, Giuseppe
- Pacheco, Joaquín Francisco
- Pacifico, David
- Packer, Frederick George
- Padilla, Diego García de
- Padilla, Juan de
- Padilla, María de
- Page, Richard
- Page, F. M.
- Pagenstecher, Carl Alexander
- Paget, Lord George Augustus Frederick
- Pagliardini, Tito
- Paillard, M.
- Paine, Thomas
- Paixhans, Henri Joseph
- Paić
- Palacio, Domingo Mariano de Traggia, marqués del
- Palacký, František
- Palarea, Juan
- Palauzov (Палаузовъ), Spiridon Nikolaevič
- Palazki → Palacký, František
- Palestrina
- Palix, Louis
- Pallas Athenae →
- Palleske, Emil
- Palmer, John Horsley
- Palmerston, Henry John Temple, 3rd Viscount
- Palmerston, Emily, Countess Couper, Viscountess
- Palmieri, Luigi
- Panat, Le chevalier de
- Pandora
- Paniagua, José María
- Panin, Viktor Nikitič Graf
- Panjutin (Панютин), Fedor Sergeevič
- Panzer, H.C.
- Papon, Jean Pierre
- Paracelsus
- Pardiñas, Ramon
- Pardo, Juan
- Paredes → Pérez Villamil, Juan
- Parejo
- Pareto, Lorenzo
- Parish, Henry Headley
- Parisius, Ludolf
- Parker, Mrs.
- Parker, Sarah
- Parkinson
- Parkinson-Fortescue, Chichester
- Parks, William
- Parmentier, Antoine Augustin
- Parnell, James
- Parnell, William
- Parque, Diego de Cañas, duque del
- Parrot, Georg Friedrich von
- Parry, Charles Henry
- Parseval-Deschênes, Alexandre Ferdinand
- Parsons, Albert Richard
- Partridge
- Pascal, Blaise
- Paskevič (Паскевич), Ivan Fedorovič
- Pasquali, Felice
- Passow, Franz Ludwig Karl Friedrich
- Passy, François Antoine
- Passy, Frédéric
- Passy, Hippolyte
- Pasteur, Louis
- Pastor, Esteban
- Pastor, Justo
- Pastré, Eugène
- Pataky, K. M.
- Paterson, William
- Patis, Bennett
- Patkul, Johann Reinhold von
- Patlaevskij (Патлаевский), Innokentij Iustinovič
- Patow, Erasmus Robert Freiherr von
- Patraic →
- Patricius →
- Patrick
- Patterson, Robert Hogarth
- Patzke, Ferdinand Wilhelm Leberecht
- Pauer, Ernst
- Paul, Sir John Dean, 2nd Baronet
- Paula-Kröcher, von
- Paulet, Charles
- Pauli, Reinhold
- Pauli, Philipp Victor
- Paulus
- Paul II.
- Paul III.
- Paul IV.
- Paul V.
- Pauvert, Jean Alfred
- Pavel I.
- Pavlov (Павловъ), Aleksěj Stepanovič
- Pawle, Henry
- Paxton, Sir Joseph
- Payne, Albert Henry
- Paz, Francisco
- Paz García, Mariano de la
- Peach, John
- Pease, Joseph
- Peate, G.
- Pecchio, conte, Giuseppe
- Pecqueur, Constantin
- Pedro I. (el Cruel)
- Pedro II.
- Peel, Jonathan
- Peel, Sir Frederick
- Peel, 2nd Baronet, Sir Robert
- Peel, 3rd Baronet, Sir Robert
- Peetz, Hartwig Freimund
- Peirce, Ebenezer Weaver
- Pelagius
- Pelayo
- Pelegrin
- Pelham-Clinton, 5th Duke of Newcastle, Henry Pelham Fiennes
- Pélissier, (seit 1856) duc de Malakoff, Aimable Jean Jacques
- Pellaton, S.
- Pellatt, Apsley
- Pelletan, Eugène
- Pelletier, Claude
- Pelletier de La Garde, Auguste
- Pelletin
- Pellico, Silvio
- Peltier, Jean Charles Athanase
- Peltier, Jean Gabriel
- Peltzer, Carl Oscar
- Pelz, Eduard
- Pelzer → Peltzer, Carl Oscar
- Pénaud, Charles Eugène
- Pène, Henri de
- Penn, William
- Pep de Olí
- Pérard, Étienne
- Perceval, Spencer
- Perchelet, Lucien
- Percy, John
- Percy, Sir Henry
- Percy, 1st Earl of Northumberland, Henry
- Perczel, Mór
- Perdonnet
- Pereira Forjaz, conde da Feira, Miguel
- Péreire, Isaac
- Péreire, Isaac
- Péreire, Jacques Émile
- Péreire → Péreire, Jacques Émile
- Perels, Emil
- Perez
- Pérez, Santiago
- Pérez, Antonio
- Pérez Villamil, Juan
- Pérez de Castro, Evaristo
- Pérez de Hita, Ginés
- Perier, Eugène
- Perin, duc de Bellune, Claude Victor
- Perkin, Sir William Henry
- Perl, August
- Pernelle, B.
- Perolero → Martínez Villergas, Juan
- Perouca
- Perrachon, Joseph-Étienne
- Perrens, François Tommy
- Perret, Henri
- Perrier, John
- Perrin, Jean-Baptiste
- Perrin, duc de Bellune, Claude Victor
- Perron, Charles
- Perrot, Franz Jakob
- Perseus
- Perseus
- Persigny, Jean Gilbert Victor Fialin, duc de
- Persoz, Charles Alexandre
- Perthes, Friedrich
- Pertz, Georg Heinrich
- Pesaduro
- Pesch →
- Pestel → Pestel' , Pavel Ivanovič
- Pestel', Pavel Ivanovič
- Peter
- Peter, Philipp
- Peter Wilhelm Karl Müller → Müller von Königswinter, Wolfgang
- Peter der Eremit →
- Peter und Paul
- Peter von Oldenburg
- Petermann, August
- Petermann, Theodor
- Peters, David
- Peters, Philipp
- Petersen, Nicolaj L.
- Petersen, Niels Lorents
- Petersen, Peter
- Petis de la Croix, François
- Petit, Alexis Thérèse
- Petmann, John
- Peto, Sir Samuel Morton
- Petr Fedorovič III. (Петр III)
- Petre
- Petrie, George
- Petrie, Martin
- Petrina, Franz Adam
- Petronijević, Milan
- Petronijevič, Avram
- Petronius Arbiter, Gaius
- Petronius Probus, Sextus
- Petrov (Петровъ), S.
- Petrus eigtl. Simon
- Petrus von Alexandria
- Petr I. (Петр I)
- Petr II.
- Petsch, Albert
- Petschler
- Petty, Sir William
- Petty-Fitzmaurice, 3rd Marquess of Lansdowne, Henry
- Petzler, Johann
- Petőfi, Sándor
- Peuchet, Jacques
- Peucker, Eduard von
- Peyron, Jean François
- Pezuela, Igacio de la
- Pezuela, marqués de Viluma, Manuel de
- Peña, Francisco Telésforo
- Pfänder, Caroline Louise
- Pfänder, Carl
- Pfaff, Christoph Heinrich
- Pfaffe Mauritius → Hartmann, Moritz
- Pfalz-Neuburg, Philipp Wilhelm von
- Pfeffer
- Pfeiffer, Eduard Gotthilf
- Pfeiffer von Weissenegg → Lang, Julius
- Pfingsten, Georg Ernst von
- Pfizer, Paul Achatius
- Pfuel, Ernst Heinrich Adolf von
- Phaedrus → Iulius Phaedrus, Gaius
- Pharmakides, Theokletos
- Phear, Sir John Budd
- Pheidias
- Phereos → Rhigas, Konstantinos
- Phidias →
- Philippe de Bourgogne
- Philippe d’Alsace
- Philippe d’Anjou
- Philippeus, Konstantin
- Philippe II Auguste
- Philippe III (le Hardi)
- Philippe IV (le Bel)
- Philippe V (le Long)
- Philippe VI
- Philippos II.
- Philipp I. (der Großmütige)
- Philips, August
- Philips, Benjamin
- Philips, Bernard
- Philips, Jacques
- Philips, Johannes
- Philips, Joseph
- Philips, Karel Samuel
- Philips, Lion
- Philips, Nanette
- Philips
- Philips
- Philips, Jeanette Margarethe Francisca
- Philips, Sophie
- Philips, Benjamin Frederik David
- Philips (Tochter), Madelon
- Philips, Madelon
- Phillimore, John George
- Phillimore, Joseph
- Phillips
- Phillips, Alfred
- Phillips, Wendell
- Philostratos, der Ältere, Flavius
- Phipps, 1st Marquess of Normanby, 2nd Earl of Mulgrave, Constantine Henry
- Photios
- Pi de Cosprons, Honoré
- Pianori, Giovanni
- Picard, Eugène Arthur
- Picard, Louis Benoît
- Picard, L. J. E.
- Piccarolo, Pietro
- Piccolomini, Reichsfürst Herzog von Amalfi, Octavio
- Pichegru, Charles
- Pichler, (seit 1877) Ritter von Rautenkar, Adolf
- Pickering, Edward
- Pickwick, Samuel
- Pico della Mirandola, Giovanni
- Pictet, Raoul
- Pidal, marqués de Pidal, Pedro José
- Pidgeon, W.
- Pidoll zu Quintenbach, Carl Freiherr von
- Piedra
- Piekarski, Witold
- Piepenbrink
- Pieper, Wilhelm
- Pieper
- Pieper
- Pierce, Franklin
- Pieri, Giuseppe Andrea
- Pierre Gravina → Gravina, Pietro
- Pierre L’Ermite → Loutil, Edmond
- Pierre L’Hermite →
- Pierre Marie de Saint-Georges → Marie , Alexandre Thomas
- Pierre d'Achères →
- Pierre d’Amiens →
- Pierre l'Ermite
- Pierstorff, Julius
- Pieter
- Piétri, Joseph Marie
- Piétri, Pierre Marie
- Piétri
- Pietsch, A.
- Pietsch, Ludwig
- Pigott, Richard
- Pilatus, Pontius
- Pilatus, Pontius
- Pillot, Jean Jacques
- Pillsbury, Parker
- Pinar, José Antonio Mon y Velarde, conde del
- Pincus Liebermann → Liebermann, Philipp
- Pindaros
- Pindy, Jean Louis
- Pinto → Smith, Latham
- Piper, Joshua Henry
- Piquero
- Pirch, Otto von
- Pirmez, Eudore
- Piron, Alexis
- Pisacane, Carlo
- Pisani, Frédéric
- Pisling, Theophil
- Pitman, Henry
- Pitt, William
- Pitt, L. K.
- Pittakos aus Mytilene
- Pius III.
- Pius IV.
- Pius IX.
- Pius V.
- Pius VI.
- Pius VII.
- Pizarro
- Pizarro, Francisco
- Planck, Gottlieb
- Planteau, François Édouard
- Plate, Wilhelm
- Platen-Hallermund, Adolf Reichsgraf von
- Plato →
- Platon
- Platon (Moskau)
- Platonia
- Platter, Julius
- Platzhoff →
- Plautus → Maccius Plautus, Titus
- Plautus siehe Maccius Plautus, Titus
- Playfair, William
- Playfair, 1st Baron Playfair, Lyon
- Plechanov (Плеханов), Georgij Valentinovič
- Plener, Ernst von
- Plenus, Joséphine
- Plessen, Otto Baron von
- Plettenberg, Wolter von
- Pletzer
- Pleydell Bouverie, Viscount Folkstone, (seit 1828) 3rd Earl of Radnor, William
- Pleydell-Bouverie, Edward
- Plimsoll, Samuel
- Plinius Maior → Plinius Secundus, Gaius
- Plinius Secundus, Gaius
- Plinius, der Ältere → Plinius Secundus, Gaius
- Plönnies, Wilhelm von
- Plonplon, Plon-Plon → Bonaparte, (seit 1852) prince Napoléon, Napoléon Jérôme Joseph Charles Paul
- Ploug, Carl Parmo
- Plümicke, Johann Carl
- Plutarchos
- Pluton
- Plácido → Concepción Valdés, Gabriel de la
- Podbielski, Theophil Eugen Anton von
- Podolinskij (Подолинский), Sergej Andreevič
- Poederlé, Eugène Joseph Charles Gilain Hubert d'Olmen
- Poerio, Carlo
- Poèrio, barone, Carlo
- Poggendorff, Johann Christian
- Pogodin (Погодин), Michail Petrovič
- Pogožev (Погожевъ), Aleksandr Vasil’evič
- Poiseuille, Jean Louis Marie
- Poisson, Siméon Denis
- Poitiers, Jean de
- Pokrovskij (Покровскій), Vasilij Ivanovič
- Polden, Alexander
- Polignac, Jules Auguste Armand Marie de
- Poljakov (Поляков), Nikolaj Petrovič
- Polke, Hugo
- Pollard, Edward Alfred
- Polling, Fr.
- Pollock, George David
- Pollock, 1st Baronet, Sir Frederick
- Polo
- Polo, Marco
- Polo de Alcocer, Pedro
- Polonius
- Polovcov (Половцовъ), Anatolij Viktorovič
- Poltrot de Méré, Jean
- Polybios
- Polydeukes
- Pommereux, L. H., comte
- Pompeius Magnus, Gnaeus
- Pompeius Magnus, Sextus
- Pompeius Magnus (der Jüngere), Gnaeus
- Pomponius Mela
- Poniatowski, Józef Anton, Fürst
- Poniatowski, Stanislaw August
- Poniropoulos, N.
- Pons, M.
- Ponsonby, 1st Viscount Ponsonby, John
- Pontalba, Célestin Alfred Delfau, baron de
- Pope, John
- Pope, Samuel
- Popp, Julius
- Poppe, Johann Heinrich Moritz von
- Popper, G.
- Poquelin →
- Porcel, Antonio
- Porcius Cato Censorius (der Ältere), Marcus
- Porta
- Porter, David Dixon
- Porter, George Richardson
- Portier de Blancmesnil, Nicolas
- Portilla, José
- Portillo, José Filiberto
- Posa, Marquis
- Poscher, Justus
- Poschinger, Heinrich von
- Posnikov (Посниковъ), Aleksandr Sergeevič
- Possevino, Antonio
- Pot de la Roche, Philippe
- Potemkin (Потемкин), Fürst, Grigorij Aleksandrovič
- Potonié, Edmond
- Pott, August Friedrich
- Potter, Alonzo
- Potter, Edmund
- Potter, George
- Potter, Sir John
- Potter, Thomas Bayley
- Potter → Webb, Beatrice
- Pottier, Eugène Edine
- Pou, Vicente
- Pouillet, Claude Servais Mathias
- Poulett Thomson, 1st Baron Sydenham, Charles Edward
- Poupart de Beaubourg, Jean Baptiste
- Poussin, Nicolas
- Poussin, Guillaume Tell
- Poussin → Poussin, Guillaume Tell
- Pouyer-Quertier, Augustin Thomas
- Powderly, Terence Vincent
- Powlett →
- Pozuelo de Aravaca
- Pozzo di Borgo, Charles André
- Pradt, Dominique Dufour baron de
- Präsmann, G.
- Pralon, E.
- Prat, D. Marcolino
- Pratt, Daniel
- Pratt, Hodgson
- Preetorius, Emil
- Preller, Ludwig
- Prendergast, John Patrick
- Presburg, Marcus Martin
- Presburg → Marx, Henriette
- Prescott, Henry James
- Prescott, William Hickling
- Preser, Karl
- Presle → Presles, Raoul de
- Presles, Raoul de
- Preston
- Preuß, Karl
- Preußen →
- Preußen →
- Prevost, Al.
- Prévost, Guillaume
- Preyer, William Thierry
- Price, Bonamy
- Price, Richard
- Price, Samuel Lowell
- Price, Sterling
- Price-Williams, Richard
- Priest
- Priestley, Joseph
- Prietzel, Georg
- Prim, Juan de los Castillejos
- Prince Alexander of Hesse Darmstadt →
- Prince-Smith, John
- Printzen
- Printzen, Adele
- Printzen, Friederika
- Printzen, Gustav
- Printzen → Eynern, Adele
- Prinz von Preußen, Friedrich Karl
- Prinzen →
- Prinzen → Printzen, Adele
- Prinzen → Printzen, Friederika
- Prinzen → Printzen, Gustav
- Prior, Matthew
- Prior, John Damrel
- Prior, Thomas
- Pritchett, Robert Taylor
- Prittwitz, Karl von
- Pritzel, Georg August
- Prokesch von Osten, Anton (seit 1845) Freiherr (seit 1871) Graf
- Prokesch-Osten → Prokesch von Osten, Anton (seit 1845) Freiherr (seit 1871) Graf
- Prokopovich, Emile de
- Prometheus
- Protasov, Nikolaj Aleksandrovič, Graf
- Protot, Eugène
- Proudhon, Pierre-Joseph
- Proust, Joseph Louis
- Prudhomme
- Prudhomme, Joseph
- Prüsmann, G.
- Prusmann → Prüsmann, G.
- Prussmann → Prüsmann, G.
- Prutz, Robert Eduard
- Príncipe, Miguel Agustín
- Psthimaf Bei
- Ptolemaios, Klaudios
- Pudovikov (Пудовиков), Petr Egorovič
- Puente, José Maria
- Püttmann, Hermann
- Pufendorf, Samuel Freiherr von
- Puget, Pierre
- Puig de Samper, José María
- Puigblanch, Antonio
- Pujol, José
- Puky, Miklós
- Pulgar, Fernando del
- Pulszky, Therese von
- Pulszky, Férencz Aurel von Lubocz und Cselfalva
- Pulz, Ludwig Freiherr von
- Pumps → Burns, Mary Ellen
- Punch
- Purdy, Frederick
- Puschkin → Puškin (Пушкин), Aleksandr Sergeevič
- Pusey, Edward Bouverie
- Puškin (Пушкин), Aleksandr Sergeevič
- Putkammer → Puttkamer, Elisabeth von
- Puttkamer, Robert Victor von
- Puttkamer, Elisabeth von
- Putzki
- Puviani, Amilcare
- Puységur, Jacques François de Chastenet, marquis de
- Puñales
- Pyat, Félix Aimé
- Pythagoras