This is an incomplete list of Catholic priests.

Priests

Roman Catholic Church

• Cristóbal Diatristán de Acuña – Jesuit explorer
• Alger of Liège – History
• Abraham Armand – Missionary to Hawaii
• Alexis Bachelot – Missionary to Hawaii
• Antonio Vivaldi – Italian baroque composer
• Erasmus of Rotterdam – Dutch priest and philosopher
• Nicolas Aubry – French priest
• Tissa Balasuriya – Sri Lankan Sinhala theologian
• Mary Bastian – Murdered activist in Sri Lanka
• David Bauer – Hockey player turned priest
• Josef Bisig – Formerly of the Society of St. Pius X, currently of the recognized Priestly Fraternity of St. Peter
• Martin Adolf Bormann – Son of Nazi Martin Bormann who works against Holocaust denial
• Jim Borst – Dutch Missionary in India since 1960
• Martin Stanislaus Brennan – Astronomer and author
• Vincent Robert Capodanno – U.S. Navy chaplain and Medal of Honor recipient.
• Francisco Fernández Carvajal – Author and Opus Dei priest.
• Solanus Casey – Declared venerable by Pope John Paul II.
• William Joseph Chaminade – Faced persecution for being a priest during the French Revolution
• Daniele Comboni – Missionary to Africa, canonized
• John M. Corridan – Anti-corruption activist
• Horacio de la Costa – Filipino Jesuit and writer
• Les Costello – A founder of the Flying Fathers exhibition hockey team
• Peter Coudrin – Faced persecution during French Revolution, later became a missionary to Hawaii
• James Coyle – Murdered Catholic priest
• Johannes Czerski – German clergyman who resigned his vicariate to found German Catholicism
• Jozef De Veuster – Canonized, worked with lepers
• Chandra Fernando – Murdered human rights activist
• Piero Folli – Italian antifascist parish priest
• Joseph Freinademetz – Missionary to China, canonized
• Mariano Gagnon – Franciscan friar and author who helped indigenous people resist the Shining Path in Peru
• Georg Gänswein – Secretary to Pope Benedict XVI
• Augustine Geve – Solomon Islands Catholic priest and politician, murdered in 2002
• Lionel Groulx – French Canadian Nationalist
• Jacques Hamel – Priest killed in the 2016 Normandy church attack.
• Elmer Heindl – American WWII chaplain
• Ignatius of Loyola – Founder of the Society of Jesus
• Itō Mancio – First official Japanese emissary to Europe, after that he became a Jesuit priest
• Saint Arnold Janssen – Missionary
• Marcelline Jayakody, Sri Lankan Sinhala author, composer of hymns, author, journalist
• Mychal F. Judge – Chaplain, 9-11 victim
• Georg Joseph Kamel – Jesuit botanist of whom the Camellia is named after. Compiled works on Philippine medicinal plants, which is well known in pharmacology
• Francis Kilcoyne (died 1985) – President of Brooklyn College
• Georges Lemaître – Physicist and Astronomer. Proposed what would become known as the Big Bang Theory.
• Georges-Henri Lévesque – Sociologist
• Gerard Timoner III – The current master of the Dominican Order
• Eustáquio van Lieshout – Did work in Brazil
• Michael J. McGivney – Founder of the Knights of Columbus
• Heinrich Maier – Head of an important resistance group against Nazi Germany
• Columba Murphy – Involved in gaining an Edict of Toleration for Hawaiian Catholics
• Hugh O'Flaherty – World War II hero
• Nemesi Marqués Oste – Rector in Andorra and political figure there
• Peter Pernin – Survivor and memoirist of the Peshtigo fire
• Wolfgang Rösch – Vicar general of Limburg
• Jean-Baptiste de La Salle – A founder of the Institute of the Brothers of the Christian Schools
• Abraham a Sancta Clara – Catholic preacher in Austria
• Francis Xavier – Jesuit missionary to Japan
• Vinkenti Peev – Bulgarian Capuchin friar
• Thomas Byles – English priest who stayed on board the sinking RMS Titanic hearing confessions
• Michael Nazir-Ali – Former prominent Anglican bishop who became Catholic and was ordained a priest on the 30th of October, 2021
• Eugine Mattioli – Longest serving Catholic missionary in Arabia
• Mihalj Šilobod Bolšić – Roman Catholic priest, mathematician, writer, and musical theorist primarily known for writing the first Croatian arithmetic textbook Arithmatika Horvatzka (published in Zagreb, 1758)
• David Michael Moses – American priest and musician
• Edward Stanger – Pastor at Holy Infant Catholic Church, Ballwin

Eastern Catholic Churches

• Ghevont Alishan – Priest of the Armenian Catholic Church who designed Armenia's first modern flag.
• Walter Ciszek – Byzantine Rite member of the Society of Jesus who was imprisoned at Lubyanka (KGB).
• Eddie Doherty – Ordained a priest in the Melkite Greek Catholic Church.
• Ed Evanko – Actor who became a Ukrainian Catholic priest.
• Nimattullah Kassab Al-Hardini – Catholic saint.
• Louis Massignon – Scholar of Islam who transferred to the Melkite Greek Catholic Church after converting to Catholicism and later became a priest.
• Alphonse Mingana – Chaldean Catholic Church priest and Orientalist.
• Youakim Moubarac – Maronite Church – priest and scholar.
• Joseph Raya – Melkite Greek Catholic priest (later archbishop) active in the U.S. civil rights movement and advocate of Israeli Christian Arabs.

Catholic exorcists

• Father Ernst Alt
• Father Candido Amantini
• Gabriele Amorth – Founder of the International Association of Exorcists
• Father Raymond J. Bishop
• William S. Bowdern – Participated in an exorcism of Roland Doe in 1949. The incident became the basis of William Peter Blatty's novel The Exorcist.
• Jeremy Davies
• Father Angelo Fantoni
• Father Jose Antonio Fortea
• Giancarlo Gramolazzo – President of the International Association of Exorcists until his death in 2010
• Father Alfred Kunz
• Father Matteo La Grua
• James J. LeBar – New York exorcist consulted with regards to films
• Malachi Martin – Writer on unusual subjects as well as an exorcist
• Father Theophilus Riesinger
• Father Rosario Stroscio