| Pachomius of Tabenna, Egypt, Abbot |
| Paciano, Bishop of Barcelona |
| Palaemon, Egyptian Monk |
| Palladius, Bishop, Missionary to Ireland before Patrick |
| Pamphilus of Caesarea, Martyr |
| Pancratius of Rome, Martyr |
| Pantaenus, Head of the Catechetical School of Alexandria |
| Pantagato, Bishop of Vienne |
| Pantaleon, Martyr |
| Paola Elizabetta Cerioli, Foundress of the Sisters of the Holy Family of Bergamo |
| Paphnutius of Borovsk, Hegumen of the Monastery of the Mother of God at Vysok |
| Papias, Bishop of Hieropolis, Father of the Church, Martyr |
| Papyrus, Deacon martyred in Pergamum |
| Paramon, Martyred under Decius |
| Paraskeve of Rome, Virgin and Martyr |
| Paraskeve Pianitza of Iconium, Virgin and Martyr |
| Parmenas of Jerusalem, Deacon |
| Parthenius |
| Pascal Baylon, Franciscan Lay Brother |
| Pascarius, Bishop of Nantes |
| Pastor of Rome, Martyr |
| Pastor, 9 year old Martyred with his brother Justus at Alcala |
| Patapius, Egyptian Monk |
| Paternus of Scissy (Avranches), Hermit |
| Paternus, 1st Bishop of Vannes |
| Patiens, Bishop of Lyon |
| Patientia (Paciencia) Matron, Mother of St. Vincent the Deacon (of Saragozza) |
| Patricia of Naples (of Constatinople) nun |
| Patrick, Bishop, Missionary to Ireland, and Father of the Church |
| Patritius, Martyr |
| Patrobus, Bishop of Puteoli |
| Patroclus, Martyr |
| Paul Burali d’Arezzo, Archbishop of Naples |
| Paul I, Patriarch of Constantinople |
| Paul Miki, Martyr of Nagasaki |
| Paul of Cyprus, Iconodule Martyr |
| Paul of Hungary, Dominican Missionary and Martyr |
| Paul of Rome, Martyr |
| Paul of the Cross, Priest and Founder of the Passionist Order |
| Paul of Thebes, the First Hermit |
| Paul the Apostle |
| Paul the Simple, Monk of the Thebiad, Egypt, disciple of St. Anthony, Abbot |
| Paul VI, Pope |
| Paul, Bishop of Verdun |
| Paul, iconophile Bishop of Prusa, in Bithynia |
| Paula Frassinetti, Foundress of the Sisters of St. Dorothy |
| Paula, Roman Matron, Mother of St. Eustochium Julia, Friend of St. Jerome |
| Paula, Virgin and Martyr |
| Paulina of Fulda, Nun |
| Paulina, Virgin and Martyr |
| Pauline of the Agonizing Heart of Jesus (Amable Lucia Visitainer) of Brazil |
| Pauline Von Mallinckrodt, Foundress of the Congregation of the Sisters of Christian Charity |
| Paulinus II, Patriarch of Aquilaea |
| Paulinus of Antioch, First Bishop of Lucca, Martyr |
| Paulinus of Nola, Bishop and Father of the Church |
| Paulinus, Bishop of Trier |
| Paulinus, last Bishop of Capua Veteria |
| Pausilippus of Thrace, Martyr |
| Pedro Esqueda Ramirez, Mexican Priest, Cristero Martyr |
| Pedro Jesus de Maldonado Lucero, Mexican Priest, Cristero Martyr |
| Pedro Tomas, Archbishop of Crete, Latin Patriarch of Constantinople |
| Pelagius (Pelayo), martyred at Cordoba |
| Pelagius, Martyr |
| Pepin of Landen the Elder, Father of Sts. Gertrude of Nivelles and Bavo |
| Peregrine Laziosi, Servite Priest, Patron of those with Cancer |
| Peregrine of Saxony, Franciscan Archbishop of Split, First Bishop of Bosnia |
| Peregrino of Foggia, Hermit, one of the co-patrons of the city |
| Peregrinus of Apollonia, Martyr |
| Peregrinus, First Bishop of Auxerre, Martyr |
| Perer Pattarini of Imola, Prior, Order of Malta |
| Perfecta of Cordoba, Martyr |
| Perfectus, Priest, Martyr of Cordoba |
| Peris “the Cardinal”, patron of Llanberis, Wales |
| Perpetua of Carthage, Martyr |
| Perpetua, Virgin and Martyr |
| Peter “the Spaniard”, Hermit |
| Peter Arbues, Assasinated Inquisitor |
| Peter Berna, Jesuit Priest, Martyred in India |
| Peter Canisius, Jesuit Priest and Doctor of the Church |
| Peter Chanel, Marist Priest, Apostle to Oceania, Martyr |
| Peter Chrysologus, Bishop of Ravenna, Father of the Church |
| Peter Claver, Jesuit Priest |
| Peter Damian, Cardinal Bishop of Ostia, Doctor of the Church |
| Peter Fabre, co-founder of the Jesuits |
| Peter Fourier, Augustinian Canon, Founder of the Canonesses Regular of St. Augustine |
| Peter Gonzalez (Gundisalvus, Telmo), Dominican |
| Peter James of Pesaro, Augustinian Priest |
| Peter Julien Eymard, Priest, Founder of the Order of the Blessed Sacrament |
| Peter Nolasco, Priest, Founder of the Order of Our Lady of Ransom |
| Peter of Alcantara, Franciscan Priest |
| Peter of Avranches, Cistercian Abbot of Savigny |
| Peter of Cava, Bishop of Policastro |
| Peter of Poitiers, Priest, French Medieval Theologian |
| Peter of Rome, Exorcist and Martyr |
| Peter of Siena, Franciscan Martyr of Thane, India |
| Peter of Verona, Dominican Priest and Martyr |
| Peter Orselolo I, 23rd Doge of Venice, Camoldolese Benedictine Monk |
| Peter Palatinos of Nicomedia, Martyr |
| Peter Regalatus, Reformed Franciscan Friar |
| Peter the Apostle |
| Peter the Hermit |
| Peter, Bishop of Osma |
| Peter, Bishop of Sebaste, Brother of Basil the Great and Gregory of Nyssa |
| Peter, Cistercian Archbishop of Tarentaise |
| Peter, Patriarch of Alexandria, Martyr |
| Petroc of Cornwall, Abbotmm |
| Petronax, Benedictine, Second Founder of Monte Cassino |
| Petronilla, Virgin and Martyr |
| Petronius, Bishop of Bologna |
| Petrus Joseph Savelberg, Priest, founder of the Little Sisters of St. Joseph |
| Petrus Norbert Donders, Dutch Redemptorist Missionary and Apostle to Lepers |
| Phanxico Xavie (Francis Xavier) Nguyen Van Thuan, Cardinal Archbishop of Saigon |
| Pharaildis, Virgin |
| Philaren Voznesensky, Russian Metropolitan of New York |
| Philaret, Patriarch of Moscow |
| Phileas, Bishop of Thmuis, Martyr |
| Philibert, Abbot of Jumieges (Noirmoutier) |
| Philip Benizi, Servite Priest |
| Philip Evans, Welsh Jesuit Priest, Martyr |
| Philip Howard, 13th Earl of Arundel, Martyr |
| Philip Howard, English Aristocrat, Matryr |
| Philip II, Patriarch of Moscow, Martyr |
| Philip Neri, Priest, Founder of the Oratory |
| Philip of Argira, Apostle of Sicily |
| Philip of Jesus, Franciscan Martyr of Nagasaki, Patron of Mexico City |
| Philip the Apostle |
| Philip the Deacon |
| Philip, Bishop of Gortina |
| Philip, Martyr |
| Philippa Mareri, Poor Clare |
| Philippianus |
| Philogonius, Patriarch of Antioch |
| Philomena, Virgin and Martyr |
| Philon, 1st Bishop of Karpasia, Cyprus |
| Philostratus, Bishop of Brescia |
| Phoca, Martyr |
| Phoebe, Deaconess of Cenchreae, who delivered Paul's Epistle to the Romans to Rome |
| Piatus (Piat), Priest, Martyred near Tournai |
| Pientius, Bishop of Poitiers |
| Piergiorgio Frassati |
| Pierina Morosini, Virgin and Martyr |
| Pierre Maubant, Priest of the Parish Foreign Mission Society, Martyred in Korea |
| Pierre-René Rogue, Vincentian (Lazarist) priest, Martyr |
| Pietro of Croce |
| Pimenius, Martyr |
| Pimenius, Spanish Bishop |
| Pinytus, Bishop of Cnossos, Crete |
| Pio of Pietrelcina, Capuchin Stigmatic and Mystic |
| Pirmin, Irish Regionary Bishop, Founded Reichenau |
| Pirro Scavizzi, Roman Priest, Missionary of the Institute “Imperiali Borromeo” |
| Pius I, Pope and Martyr |
| Pius IX, Pope |
| Pius V, Dominican Pope |
| Pius X, Pope |
| Pius XII, a zucchetto he wore and a bone chip |
| Placida, Virgin and Martyr |
| Placidus of Dissentis, Swiss Martyr |
| Placidus, Disciple of St. Benedict |
| Placidus, Martyr |
| Plato of Constantinople, Abbot |
| Plautilla, Widow, Mother of Flavia Domitilla, sister of Senator Flavius Clemens |
| Plutarch of Alexandria, Disciple of Origen, Companion of Serenus, Martyr |
| Poetia, Martyr |
| Polion of Rome, Martyr |
| Polycarp, Bishop of Smyrna, Father of the Church, Martyr |
| Polyeuctos of Militene, Soldier and Martyr |
| Pompeius, Bishop of Pavia |
| Pompilius Maria Pirotti, Piarist Priest, Reformer |
| Pomponius, 20th Bishop of Naples |
| Pomponius, Syrian Bishop and Martyr |
| Poncius of Carthage |
| Pontian, Pope and Martyr |
| Pontius of Cimiez, Roman Senator and Martyr |
| Pontius, Bishop of Nice and Martyr |
| Portia, Virgin and Martyr |
| Potentiana, Martyr |
| Pothinus, Bishop of Lyon, Martyr |
| Pragmatius, Bishop of Autun |
| Praxedes of Rome, Virgin |
| Primitivus of Leon, Martyr |
| Primus of Rome, Martyr |
| Primus, Martyr |
| Principius, Bishop of Soissons |
| Prisca of Rome, Virgin and Martyr |
| Priscilla, Matron |
| Priscus |
| Privatus (Privat), Apostle of Gevaudan, First Bishop of Mende, Martyr |
| Probus, Martyr |
| Procharius (Porcarius II – Porcaire), Abbot of Lèrins, Martyr |
| Procopius of Casearea in Palestine, Martyr |
| Procopius, Abbot of Sazawa, Bohemia |
| Procopius, Martyr |
| Proculus of Bologna, Martyr |
| Proculus, Patriarch of Constantinople |
| Prosdocimus, First Bishop of Padua, Martyr |
| Prosper |
| Prosper of Aquitaine, Lay Church Father, Disciple of Augustine of Hippo |
| Prosper, Bishop of Orleans |
| Prospera, Martyr |
| Protase, Martyr |
| Proterius, Patriarch of Alexandria, Martyr |
| Protomartyrs of Trier: Bishop Vigilius, Sissinius, Alexander, and Martyrius (one of them) |
| Protus of Rome, brother of Hyacinth, Martyr |
| Prudence, Virgin, Augustinian Hermit |
| Prudentius, Bishop of Troyes |
| Prudentius, Martyr |
| Ptolomaeus, Martyr |
| Publius, Second Bishop of Athens, Martyr |
| Pudentiana of Rome, Virgin |
| Pudenziana (Potentiana), Martyr |
| Pulcheria, Byzantine Empress |
