 Blessed Placide Victoire Eulalie Viel (secular name)Religious and mother general of Sisters of the Christian Schools. |
 Saint Placido, O.S.B. |
| Saint Placido |
 Blessed Plácido de Jesús, O.SS.T. Plácido Camino Fernández (secular name) |
| Blessed Plácido del Niño Jesús, O.C.D. José Luis Collado Oliver (secular name) |
| Blessed Placido di Roio |
| Blessed Plácido García Gilabert, O.F.M. |
| Blessed Plácido María, O.S.B. Subl. Càndid Feliu Soler (secular name) |
| Blessed Placido Tommaso Riccardi (secular name) |
 Saint Placidus von Disentis |
 Saint Plato of Ancyra |
| Saint Platon |
 Saint Plutarch |
| Saint Poemon |
| Saint Pol Aurélien Bishop of Léon (France) (529? – 575.03.12)Bishop. One of the seven holy founders of Brittany. |
 Saint Polius |
| Saint Polyænus of Prusa |
| Saint Polyanus |
| Blessed Polycarpe, SS.CC. Jules Tuffier (secular name) |
 Saint Polydore Plasden |
| Saint Polyeuctus |
| Saint Polyeuctus of Melitene Layperson. Roman army officer. Martyr. |
 Saint Polyon Layperson. Lector. Martyr. |
 Saint Pompeius |
| Saint Pompilio Maria Pirrotti, Sch. P. |
| Saint Pomposa de Córdoba Religious. Nun of San Salvador de Peñamelaria. Martyr. |
| Blessed Ponce de Faucigny, C.R.S.A. |
| Blessed Ponciano Nieto Asensio, C.M. |
| Saint Pons de Cimiez |
| Blessed Pons de Léras |
| Saint Pons de Mont Andon Died:1087 (Villeneuve-lez-Avignon, France)Abbot. Abbot of Saint-Andon. |
| Saint Pontiano da Spoleto |
 Saint Pontianus Ngondwe Ponsiano (Kiswahili) |
| Saint Pontius of Carthage |
 Saint Pontius of Crete |
| Saint Ponziano di Roma |
| Saint Poppon de Stavelot, O.S.B. |
| Saint Porcaire de Lérins |
| Saint Porfirio |
| Blessed Porfirio, F.M.S. Leoncio Pérez Gómez (secular name) |
| Saint Porphyrius of Magnesia |
 Saint Porphyry of Caesarea in Palæstina |
| Saint Potamiana |
| Saint Potamion of Heraclea |
 Saint Potentinus |
| Saint Potito |
| Saint Pourçain d’Auvergne Died:532? (Saint-Pourçain-sur-Sioule, France)Feast:11.24Abbot. |
| Saint Praxedes Prassede di Roma |
| Blessed Presentación de la Sagrada Familia, Sch.P. Pascuala Presentación Gallén Martí (secular name)Born:1872.09.21 (Morella, Castellón, Spain)Died:1936.08.08 🩸 (El Saler, Valencia, Spain † 63)Beatified:2001.03.11Feast:08.08Religious of Daughters of Mary Escolapias. Martyr. |
| Saint Presidius Bishop. Bishop of northern Africa killed by King Hunneric of the Vandals. Martyr. |
| Saint Prilidian of Antioch |
| Blessed Prima de Jesús, A.A.S.C. María Prima Ipiña Malzárraga (secular name)Born:1898.06.09 (Valle de Orozco, Vizcaya, Spain)Died:1936.11.10 🩸 (Madrid, Spain † 38)Beatified:2007.10.28Religious of Sisters Adorers Handmaids of Charity and of the Blessed Sacrament. Martyr. |
| Saint Primiano |
| Saint Primitivo |
| Blessed Primitivo Berrocoso Maillo, C.M.F. |
| Blessed Primitivo de Villamizar, O.F.M. Cap. Lucinio Fontanil Medina (secular name) |
| Saint Primitivo de Zaragoza |
| Saint Primitivo di Gabi |
| Blessed Primitivo Sandín Miñambres, O.E.S.A. |
| Saint Primitivus |
| Blessed Primo Martínez de San Vicente Castillo, O.H. |
| Saint Primus |
| Saint Primus |
| Saint Principin |
| Saint Prisca |
| Blessed Prisciliano, F.M.S. José Mir Pons (secular name) |
 Saint Priscilla |
| Saint Prisco Died:VII century? (Quintodecimo, Italy)Hermit. |
| Saint Prisco di Capua |
| Saint Priscus of Cæsarea |
| Saint Prix d’Auxerre Layperson. Roman legionary officer. Martyr. |
| Saint Probus |
| Saint Probus |
| Saint Probus |
| Saint Processo |
| Saint Prochorus Bishop of Nicomedia (? – I century)Bishop. One of the Seven Deacons. |
| Saint Proclo di Bisignano |
| Saint Proclus |
| Saint Procolo di Bologna |
| Saint Procopius of Decapolis |
 Saint Procopius of Sázava |
| Saint Procopius of Scythopolis |
| Saint Procule de Moulins Died:XI century 🩸 (Moulins, France)Layperson. Martyr. |
| Saint Proculo |
| Saint Prosdoce |
| Saint Prosper d’Aquitaine |
| Saint Próspero de Tarragona |
| Blessed Protais de Séez, O.F.M. Cap. Jean Bourdon (secular name) |
| Blessed Protasi Cubells Minguell, O.H. |
| Saint Protasio |
 Saint Protasius Chŏng Kuk-bo 정국보 프로타시오 (한국어)丁玻羅大削 (正體中文)Layperson. Married. Martyr. |
| Blessed Protasius Hong Jae-yeong 홍재영 프로타시오 (한국어)洪梓榮 (正體中文) |
| Saint Protaso di Milano |
| Saint Prothade de Besançon Metropolitan Archbishop of Besançon (France) (? – 620.02.10?)Archbishop. |
| Saint Proto |
| Saint Proto di Aquileia |
| Saint Protus of Alexandria |
| Blessed Prudenci de Pomar de Cinca, O.F.M. Cap. Gregori Charlez Ribera (secular name) |
| Blessed Prudencia Canyelles Ginesta Born:1884.08.05 (Sant Celoni, Barcelona, Spain)Died:1936.07.23 🩸 (L’Arrabasada highway, Barcelona, Spain † 51)Beatified:2007.10.28Layperson of Barcelona. Married. Martyr. |
| Blessed Prudencio de la Cruz, O.SS.T. Prudencio Gueréquiz y Guezuraga (secular name) |
| Saint Psalmet |
| Saint Ptolemy |
| Saint Ptolemy |
| Saint Publia of Antioch Religious. Widow. Martyr. |
| Saint Publio de Zaragoza |
| Blessed Publio Fernández González, O.H. |
| Blessed Publio Rodríguez Moslares, O.M.I. |
 Saint Publius Bishop of Malta (Malta) (69 – 90)Bishop. One of the Seventy Apostles. |
| Saint Pudenziana di Roma Died:II century (Roma, Italy)Layperson. |
| Saint Pulcheria Empress of the Roman Empire. |
| Blessed Purificación de María, A.A.S.C. Purificación Martínez Vera (secular name)Religious of Sisters Adorers Handmaids of Charity and of the Blessed Sacrament. Martyr. |
 Saint Pusicius of Persia |