This list of Roman Catholics is comprised of notables who were baptized as Catholics but may not be practicing, people who converted to Catholicism, people who are practicing Catholics or people who may be lapsed Catholics. It includes saints and sinners, entertainers and dictators, and people who are living and who are dead.
American West Personalities
- Kit Carson, convert
- Buffalo Bill, convert
- Doc Holliday, convert
- Chief Joseph
- Black Elk, convert
- William P. Longley, convert
Film/TV directors & producers
- Pedro Almodovar
- William Bell
- Alan Bleasdale
- Frank Borzage
- Albert R. Broccoli, producer
- Luis Buñuel
- Brian Burns
- Edward Burns
- Frank Capra
- Jack Clayton
- Francis Ford Coppola
- Sofia Coppola
- Jan De Bont
- Brian De Palma
- Allan Dwan
- Federico Fellini
- John Ford
- John Frankenheimer
- Vincent Gallo
- Terry George
- Garry Hynes, theatre director
- Sir Alfred Hitchcock
- Agnieszka Holland
- Janusz Kaminski, cinematographer
- Fritz Lang
- Louis Malle
- Leo McCarey
- Vincente Minnelli
- Campion Murphy, also physical trainer and actor; married to actress Faith Ford
- Agnes Nixon
- Hermes Pan
- Nick Park, CBE
- Hal Roach
- Ken Russell, convert
- Martin Scorcese
- Mack Sennett
- Jim Sheridan
- Peter Sheridan
- Jerzy Skolimowski
- Jimmy Smallhorne
- Kevin Smith
- François Truffaut
- Andrzej Wajda
- Dick Wolf
- Hugh Wooldridge
- Lina Wertmuller
- Lars von Trier, convert
Actors and Actresses
- Margo aka Margo Albert
- Cecily Adams
- Danny Aiello
- Anna Maria Alberghetti
- Carla Alberghetti
- Ana Alicia
- Alan Alda
- Antony Alda
- Robert Alda
- Fred Allen
- Rae Allen
- Gracie Allen
- Steve Allen
- Sara Allgood
- Christiane Amanpour
- Don Ameche
- Jim Ameche
- Kevin Anderson
- Eamonn Andrews
- Pier Angeli
- Francesca Annis
- Richard Arlen
- Desi Arnaz, Jr.
- Lucie Arnaz
- Mary Astor, convert
- Stephane Audran
- Frankie Avalon
- Dan Aykroyd
- Alec Baldwin
- Billy Baldwin
- Daniel Baldwin
- Kaye Ballard
- Eric Bana, né Eric Banadinović
- Anne Bancroft
- Antonio Banderas
- Monty Banks
- Ian Bannen
- Christine Baranski
- Joseph Barbara (actor), actor NOT Mafioso
- Brigitte Bardot
- Binnie Barnes
- Julia Barr
- B. Constance Barry
- Raymond J. Barry
- Ethel Barrymore, child convert by mother
- John Barrymore, child convert by mother
- Lionel Barrymore, child convert by mother
- Steven Bauer
- John Beal
- Jennifer Beals
- Sister Wendy Beckett
- Bonnie Bedelia
- Joy Behar
- Monica Bellucci
- Jean-Paul Belmondo
- Patrick Bergin
- Valerie Bertinelli
- Micheline Bertrand
- Ted Bessell
- Leslie Bibb
- Jason Biggs
- Cilla Black
- Sally Blane
- Alexis Bledel
- Scotty Bloch
- Ann Blyth
- Walter Bobbie
- David Boreanaz
- Ray Bolger
- Eric Bruno Borgman
- Ernest Borgnine
- Charles Boyer
- Lara Flynn Boyle
- Peter Boyle
- Lorraine Bracco
- Klaus Maria Brandauer
- Eileen Brennan
- George Brent
- Paul Brinkman, Jr.
- Danielle Brisebois
- Frederick Brisson, a.k.a. 'Freddy Brisson'
- Mary Brodel
- Pierce Brosnan
- Pamela Brown
- Coral Browne, convert
- Niall Buggy
- Kathy Burke
- Ellen Burstyn
- LeVar Burton
- Francis X. Bushman
- Norbert Leo Butz
- Amanda Byram
- Gay Byrne
- Gabriel Byrne
- Martha Byrne
- Edd Byrnes
- Lorenzo Caccialanza
- Nicolas Cage
- James Cagney
- Jeanne Cagney
- Thomas Calabro
- Simon Callow
- Joseph Campanella
- John Candy
- Diana Canova
- Judy Canova
- Eduardo Cansino (Sr.)
- Claudia Cardinale
- Macdonald Carey
- Len Cariou
- George Carlin
- Lynn Carlin
- Art Carney
- Adam Carolla
- Tia Carrere
- Jim Carrey
- Helena Carroll
- Leo G. Carroll
- Madeleine Carroll
- David Caruso
- Peggy Cass
- Mary Jo Catlett
- Jim Caviezel
- Charo
- Robin Christopher
- Julian Clary
- Robert Clohessy
- Betty Clooney
- George Clooney
- Nick Clooney
- Rosemary Clooney
- George M. Cohan
- Nicholas Colasanto
- Claudette Colbert
- Margaret Colin
- Pauline Collins
- Paulo Costanzo
- Dolores Costello
- Helene Costello
- Enrico Colantoni
- Ethel (Barrymore) Colt
- Chevi Colton
- Chuck Connors
- Mark Consuelos
- Tom Conti
- Jackie Coogan
- Steve Coogan
- Gary Cooper
- Daniel Cosgrove
- Dolores Costello
- Helene Costello
- Jeanne Crain
- Joan Crawford
- Paddy Croft
- Bing Crosby
- Kathryn Crosby
- Mary Frances Crosby
- Tom Cruise
- Penélope Cruz
- Kieran Culkin
- Kit Culkin
- Macaulay Culkin
- Rory Culkin
- Jane Curtin
- Valerie Curtin
- Fifi D'Orsay
- Dan Dailey
- Irene Dailey
- Lili Damita
- Sybil Danning
- Tony Danza
- Danielle Darrieux
- Marion Davies
- Joan Davis
- Judy Davis
- Justin Deas
- Leonardo Defilippis
- Kim Delaney
- Lea DeLaria
- Alain Delon
- Benicio Del Toro
- Catherine Deneuve
- Robert DeNiro
- Brian Dennehy
- Jane Dentinger
- Gérard Depardieu
- Anne DeSalvo
- Danny DeVito
- Angie Dickinson
- Matt Dillon
- Kevin Dillon
- Jeane Dixon
- Kevin Dobson
- Dagmara Dominczyk
- Marika Dominczyk
- Phil Donahue
- Donal Donnelly
- Steve Doocy
- Ray Dooley
- Françoise Dorleac
- Maurice Dorleac
- Mike Douglas
- Bairbre Dowling
- Eddie Dowling
- Vincent Dowling
- Roma Downey
- Brian Doyle-Murray
- Jessica Dragonette (Mrs. N. Turner)
- Alfred Drake
- Patty Duke
- Julia Duffy
- Faye Dunaway
- Dominique Dunne
- Irene Dunne
- Jimmy Durante
- Roger Ebert
- Vince Edwards
- Samantha Eggar
- Richard Egan
- Jenna Elfman
- René Enríquez
- Emilio Estevez
- Rupert Everett
- Shelley Fabares
- Nanette Fabray
- Peter Facinelli
- Jeff Fahey
- Lola Falana
- Jimmy Fallon
- Chris Farley
- Jamie Farr
- Colin Farrell
- Mike Farrell
- Mia Farrow
- John Farrow
- Prudence Farrow
- Farrah Fawcett
- Kevin Federline
- Maria Félix
- José Ferrer
- Mel Ferrer
- Miguel Ferrer
- Ralph Fiennes
- Frank Finlay CBE
- Linda Fiorentino
- Joely Fisher
- Marsha Fitzalan
- Geraldine Fitzgerald
- Fionnuala Flanagan
- Pauline Flanagan
- Maureen Flannigan
- Joseph "Joe" Flynn
- Terry Forrestal, stunt-man
- Mike Frankovich
- Mike Frankovich, Jr.
- Peter Frankovich
- Mary Frann
- William Frawley
- Annette Funicello
- Clark Gable
- Eva Gabor
- Jim Gaffigan
- David Gallagher
- Helen Gallagher
- Megan Gallagher
- Peter Gallagher
- Sir Michael Gambon
- James Gandolfini
- Jennie Garth, convert
- Kathy Garver
- Karl Geary
- Gil Gerard
- Jackie Gleason
- Paul Gleason
- Brendan Gleeson
- Sharon Gless
- Donal Gibson
- Mel Gibson
- Arthur Godfrey
- Victoria Gotti
- Heather Graham
- Lauren Graham
- Linda Gray
- Kathy Griffin
- Merv Griffin
- Rachel Griffiths
- Sir Alec Guinness CBE, convert
- Bryant Gumbel
- Greg Gumbel
- Joan Hackett
- Jack Haley Sr.
- Anthony Michael Hall
- Huntz Hall
- Pat Harrington, Jr.
- Damien Harris
- Jamie Harris
- Jared Harris
- Richard Harris
- Dolores Hart, now a Reverend Mother at an abbey in Connecticut
- Ian Hart
- Melissa Joan Hart
- David Hartman
- Phil Hartman
- Josh Hartnett
- David Hasselhoff
- June Haver
- Salma Hayek
- Helen Hayes
- Patricia Hayes
- Susan Hayward
- Rita Hayworth
- Joey Heatherton
- Ray Heatherton
- Patricia Heaton
- Katherine Helmond
- Florence Henderson
- Marilu Henner
- Edward Herrmann
- Christopher Hewett
- William Hickey
- Bert Hicks
- Catherine Hicks
- Ciarán Hinds
- Gregory Hines
- Alma Hitchcock, convert
- Patricia Hitchcock
- Eamonn Holmes
- Katie Holmes
- Bob Hope, convert
- Dolores Hope
- Monica Horan, converted to Judaism
- Liza Huber
- Barnard Hughes
- Bonnie Hunt
- Betty Hutton
- Michael Imperioli
- Zeljko Ivanek
- Lionel Jeffries
- Richard Jeni
- Tonicha Jeronimo
- Henry Jones
- Raúl Julia
- Jane Kaczmarek
- Marie Kean
- Charles Keating (actor)
- Michael Keaton
- Gertrude Keeler
- Helen Keeler
- Ruby Keeler
- Frank Keenan
- Catherine Keener
- Andrew Keir
- Deirdre Keir
- Sean Keir
- Brian Keith
- Gene Kelly
- Grace Kelly
- Moira Kelly
- Nancy Kelly
- Patsy Kelly
- Nicole Kidman
- Pat Kielty
- Brian Kilmeade
- Jimmy Kimmel
- Morgana King
- Kevin Kline
- Melania Knauss Trump
- Jane Krakowski
- Diane Ladd
- Veronica Lake
- Mick Lally
- Fernando Lamas
- Lorenzo Lamas
- Dorothy Lamour
- Carole Landis
- Lola Lane
- Nathan Lane
- Priscilla Lane
- Julius LaRosa
- John Larroquette
- Danny LaRue (né Daniel Carroll)
- Charles Laughton
- Christopher Lawford
- Denis Leary
- John Leguizamo
- Lotte Lenya
- Joan Leslie
- Rosaleen Linehan
- Virna Lisi
- Moira Lister
- Eugene Lockhart
- June Lockhart
- Donal Logue
- Gina Lollobrigida
- Louise Lombard
- Eva Longoria
- George Lopez
- Jennifer Lopez
- Jack Lord
- Sophia Loren
- Susan Lucci
- Laurence Luckinbill
- Allen Ludden
- Béla Lugosi
- John Lynch
- Susan Lynch
- Patrick Magee
- Anna Magnani
- Bill Maher
- Joseph Maher
- John Mahoney
- Dorothy Malone
- Nancy Malone
- Anna Manahan
- William Mapother
- Ed Marinaro, former athlete
- Giulietta Masina
- Marsha Mason
- Valerie Masterson
- Jerry Mathers
- Chris Matthews
- Carmen Maura
- Ray McAnally
- Ruth McCabe
- Mercedes McCambridge
- Jenny McCarthy
- Catherine McCormack
- Dylan McDermott
- Joseph McGann
- Mark McGann
- Paul McGann
- Stephen McGann
- Patrick McGoohan
- Siobhan McKenna
- John McLaughlin, from the "McLaughlin Group"
- Ed McMahon
- Ciarán McMenamin
- Colm Meaney
- Anne Meara, converted to Judaism
- John Megna
- Adolphe Menjou
- Paul Merton
- Christa Miller
- Liza Minnelli
- Helena Modjewska, neé H. Modrzejewska
- Alfred Molina
- Al Molinaro
- Dearbhla Molloy
- Kelly Monaco
- Dominic Monaghan
- Paolo Montalban
- Ricardo Montalban
- Charlotte Moore
- Mary Tyler Moore
- Lisa Mordente
- Rita Moreno
- David Morrissey
- Doretta Morrow
- Marianne Muellerleile
- Patrick Muldoon
- Kate Mulgrew
- Edward Mulhare
- Matt Mulhern
- Dermot Mulroney
- Richard Mulligan
- Robert Mulligan
- Samantha Mumba, also singer
- Dermot Murnaghan
- Cillian Murphy
- Donna Murphy
- Rosemary Murphy
- Joel Murray
- Bill Murray
- Jack Nicholson
- Kevin Nealon
- Liam Neeson
- Bob Newhart, sister is a nun, Sr. M. Joan Newhart
- Frank Nicotero
- Tom Noonan
- Conan O'Brien
- Edmond O'Brien
- Maria O'Brien
- Pat O'Brien
- Brian F. O'Byrne
- Richard O'Callaghan, né Richard Rooke
- Charlie O’Connell
- Jerry O’Connell
- Carroll O'Connor
- Frances O'Connor
- Glynnis O'Connor
- Hugh O'Connor
- Joseph O'Connor UK
- Una O'Connor
- Chris O'Donnell
- Rosie O'Donnell
- Paul O'Grady a.k.a. "Lily Savage"
- Catherine O'Hara
- David O'Hara
- Joan O'Hara
- Maureen O'Hara
- Dan O'Herlihy
- Jodi Lyn O'Keefe
- Michael O'Keefe
- Aideen O'Kelly
- Gerald S. O'Loughlin
- Mike O'Malley
- Kerry O'Malley
- Ryan O'Neal
- Ed O'Neill
- Maire O'Neill
- Ciarán O'Reilly
- Milo O'Shea
- Tessie O'Shea
- Maureen O'Sullivan
- Peter O'Toole
- Jerry Orbach
- Al Pacino
- Joanna Pacula
- Ron Palillo
- Louella Parsons
- Jason Patric
- Marisa Pavan
- Cecilia Peck
- Gregory Peck
- Charles Pemberton
- Rosie Perez
- Joe Pesci
- Bernadette Peters
- Lenka Peterson
- Joy Philbin
- Regis Philbin
- John Phillips
- Julianne Phillips
- Carlo Ponti
- Carlo Ponti, Jr.
- Edouardo Ponti
- Pete Postlethwaite
- Maureen Potter
- Monica Potter
- Tyrone Power
- Paula Prentiss
- Priscilla Presley
- Vincent Price, convert
- Edmund Purdom
- Anna Quayle
- Aidan Quinn
- Colin Quinn
- Glenn Quinn
- Bill Quinn a.k.a. Billy Quinn
- Stefanie Powers
- Joyce Randolph
- John Ratzenberger
- Paula Raymond
- Maureen Reagan
- Jean Reno
- Denise Richards
- (Sir) Ralph Richardson
- Lisa Rinna
- Kelly Ripa
- Cyril Ritchard
- Chita Rivera
- Cokie Roberts
- Tim Robbins
- Anne Robinson, UK
- Alex Rocco
- Eamonn Roche
- Eugene Roche
- Joe Rogan
- Gilbert Roland
- Ray Romano
- Paul Ronan
- Isabella Rossellini
- Mickey Rourke
- Mercedes Ruehl
- Mark Russell
- Rosalind Russell
- Meg Ryan
- Susan St. James
- Lea Salonga
- Laura San Giacomo
- Isabel Sanford
- Mia Sara
- Susan Sarandon
- Jonathan Schaech a.k.a. Johnathon Schaech
- Carl Schell
- Immy Schell
- Maria Schell
- Maximilian Schell
- Claudia Schiffer
- Peter Scolari
- Arnold Schwarzenegger
- Margaretta Scott
- Paolo Seganti
- Hildegarde Sell
- Janie Sell
- Molly Shannon
- Grant Shaud
- Charlie Sheen
- Martin Sheen
- Brooke Shields
- Talia Shire
- Martin Short
- Kin Shriner
- Wil Shriner
- Maria Shriver
- Casey Siemaszko
- Nina Siemaszko
- Simone Simon
- Gary Sinise
- Tony Slattery
- Suzanne Somers
- Pamela Springsteen
- Frank Stallone
- Sylvester Stallone
- Maureen Stapleton
- Imelda Staunton
- Connie Stevens
- Elaine Stritch
- Ed Sullivan
- Francis L. Sullivan
- Susan Sullivan
- Don Swayze
- Patrick Swayze
- Patsy Swayze
- Julia Sweeney
- Loretta Swit
- Laurette Taylor
- Danny Thomas
- Marlo Thomas
- Tony Thomas
- Jimmy Tingle
- Colm Tóibín, also an author
- Concetta Tomei
- Marisa Tomei
- Stuart Townsend
- Jeff Trachta
- Spencer Tracy
- Daniel J. Travanti
- Ellen Travolta
- John Travolta
- Alex Trebek
- Robin Tunney
- Robert Urich
- David Ushery, TV anchor
- Brenda Vaccaro
- Wilmer Valderrama
- Rudolph Valentino
- Jean Claude Van Damme
- Dick Van Patten
- Jimmy Van Patten
- Nels Van Patten
- Vincent Van Patten
- Joyce Van Patten
- Robert Vaughn
- Johnny Vegas
- Meredith Viera
- Goran Visnjic
- Viva
- Jon Voight
- Mark Wahlberg
- Julie T. Wallace
- John Walsh
- Julie Walters
- Patrick Warburton
- Ethel Waters
- John Wayne
- Michael Wayne
- Chloe Webb
- George Wendt
- Walt Willey
- Cindy Williams
- Mary Alice Williams
- Finty Williams (neé Tara Williams)
- Michael Williams
- Vanessa Lynn Williams
- Peta Wilson
- Owen Wilson
- Tom Wilson
- Terry Wogan KBE
- Katherine Wogan
- Elijah Wood
- Susan Wooldridge
- Tom Wopat
- Jane Wyatt
- Jane Wyman
- Keenan Wynn
- Lindsay Younce, convert
- Burt Young
- Georgianna Young-Montalban
- Loretta Young
- Polly Ann Young
- Robert Young
- Catherine Zeta-Jones
Musicians & Singers
- Aaliyah (neé A. Dana Haughton)
- Christina Aguilera
- Nick Alexander
- Marc Anthony
- Desi Arnaz, Sr.
- Hanna Bielicka
- Black 47
- Boyzone
- B*witched except Greek-born member Lindsay Armaou
- Emma Bunton, 'Baby Spice'
- Teresa Braganza
- Dave Brubeck, convert
- Montserrat Caballé
- Vikki Carr
- José Carreras
- Enrico Caruso
- Madonna
- George M. Cohan, see also Actors,qv
- Perry Como
- Harry Connick, Jr.
- Andy Cooney
- Billy Corgan, from "Smashing Pumpkins"
- Nadine Coyle
- Michael Crawford
- Peter Criss
- Celia Cruz
- Xavier Cugat
- Vic Damone
- Bobby Darin
- Dennis Day
- Victoria de los Angeles
- Plácido Domingo
- Howie Dorough
- Brian Eno
- Enya
- Gloria Estefan
- Marianne Faithfull, pressured to convert by her school
- Eileen Farrell
- Joey Fatone
- Michael Flatley
- Nelly Furtado
- Bronagh Gallagher
- Jerry Garcia
- Bob Geldof KBE
- Debbie Gibson
- Jerry Hadley
- George Harrison (I), quietest Beatle
- Fran Healy, only Catholic member of Scottish band "Travis"
- Rick James
- Ronan Keating
- Sammy Kershaw
- Gene Krupa
- Mario Lanza
- Ute Lemper
- Lindsay Lohan
- Dean Martin
- Ricky Martin from "Menudo"
- Master P
- Sir Paul McCartney
- Susan McKeown
- Aprile Millo
- Anna Moffo
- Mandy Moore
- Lorrie Morgan
- Alanis Morrisette
- Larry Mullen
- Gerry Mulligan
- Aaron Neville
- Wayne Newton, convert
- Helen O'Connell
- Sinéad O'Connor
- Daniel O'Donnell
- Boy George O'Dowd
- OASIS
- Kid Ory, né Edward Ory
- Joan Osborne
- Frank Patterson
- Luciano Pavarotti
- Marguerite Piazza
- Carmel Quinn
- Kid Rock
- Patti Scialfa
- Renata Scotto
- Jon Secada
- Frank Sinatra
- The Smiths
- Bruce Springsteen
- Gwen Stefani
- "Chip" Taylor, né James Voight
- Nigel John Taylor, from "Duran Duran"
- Renata Tebaldi
- Arturo Toscanini
- Jasmine Trias
- Pierce Turner
- Steven Tyler
- Ronan Tynan
- Ritchie Valens
- Alex Van Halen
- Eddie Van Halen
Classical music composers
- Ludwig van Beethoven
- Vincenzo Bellini
- Hector Berlioz
- Anton Bruckner
- Frederic Chopin
- Claude Debussy
- Josquin Des Prez
- Antonín Dvořák, sometimes called Anton Dvořák
- Gabriel Faure
- Carlo Gesualdo
- Joseph Haydn
- Franz Liszt
- Orlando di Lasso
- Gustav Mahler, converted under duress
- Claudio Monteverdi
- Wolfgang Amadeus Mozart
- Giovanni Pierluigi da Palestrina
- Giacomo Puccini
- Maurice Ravel
- Gioacchino Rossini
- Franz Schreker, had some Jewish roots
- Franz Schubert
- Bedrich Smetana
- Johann Strauss
- Richard Strauss
- Giuseppe Verdi
Authors, Writers & Editors
Catalan language
Croatian language
- Slavenka Drakulić, surname sometimes spelled Draculić
- Ivan Gundulić
- Marko Marulić
- Miroslav Krleža
Czech language
English language
- Cecilia Ahern
- Karen Armstrong, former nun
- Dame Beryl Bainbridge, convert
- Kinvara Balfour
- Michael Barone
- Sebastian Barry
- Maeve Binchy (Snell)
- Jonathan Philbin Bowman
- Maeve Brennan
- Brigid Brophy
- Anthony Burgess
- Ana Castillo
- Geoffrey Chaucer
- G. K. Chesterton
- Sister Joan Chittister
- Rev. Drew Christensen, editor of Jesuit publication "America"
- Joseph Conrad
- Tim Pat Coogan
- John Cornwell
- Christopher Cviic
- Seamus Deane
- Tim Drake
- John Dryden, convert
- Stephen Dubner, parents converted
- Eamon Duffy
- F. Scott Fitzgerald
- Regis Flaherty
- Sinéad Flanagan (Mrs. de Valera)
- Lady Antonia Fraser, child convert
- Brian Friel
- Thomas Gallagher, "Paddy's Lament"
- Terry Golway
- Dan Goggin
- Katie Grant
- Graham Greene, convert
- Rev. Andrew Greeley
- Denis Hamill
- Pete Hamill
- Philip Havey
- Seamus Heaney
- Margaret Hebblethwaite
- Peter Hebblethwaite
- Ernest Hemingway, convert
- James Ivory
- James Joyce
- Kitty Kelley
- George Kelly, uncle of Grace Kelly, qv
- Joyce Kilmer, convert
- Francis Ledwidge, poet
- John Leo
- Penny Lernoux
- Sir Michael Levey
- Elmore Leonard
- Jonathan Luxmoore
- Jolanta Babiuch-Luxmoore
- Sir Thomas Malory
- Hilary Mantel
- Rev. James Martin, S.J., an associate editor of Jesuit publication "America"
- Rev. Malachi Martin
- Gerry Matatics, convert
- Mike McAlary
- Eamonn McCann
- Cormac McCarthy
- Conor McCourt
- Frank McCourt
- Malachy McCourt
- Conor McPherson
- Martin McDonagh
- Claude McKay, convert
- Jason Miller
- Margaret Mitchell
- Brian Moore
- George Moore
- Thomas Moore
- Conor Cruise O'Brien
- Maíre McEntee O'Brien a.k.a. Máire Mac an tSaoi
- Edna O'Brien
- Flannery O'Connor
- Eugene O'Neill
- Thomas Packenham, child convert
- Walker Percy, convert
- Alexander Pope
- Katherine Anne Porter, convert
- Gerald Posner
- Bill Reel
- Rev. Thomas Reese, former editor of Jesuit publication "America"
- Michéle Roberts
- Nora Roberts
- George Santayana
- William Shakespeare possibly, not certainly
- Carmel Snow
- Joseph Sobran
- Dame Muriel Spark, convert
- Peter Stanford
- Margaret O'Brien Steinfels
- Peter Steinfels
- Andrew Sullivan
- May Swenson, convert
- Ellen Tarry, convert
- Colin Teevan
- F.X. Toole, born Jerry Boyd
- Auberon Waugh
- Evelyn Waugh, convert
- Mary Wesley, convert
- Tennessee Williams, convert
- James Wolcott
French language
- Guillaume Apollinaire
- Charles Baudelaire
- Honoré de Balzac
- Albert Camus
- Simone de Beauvoir
- Denis Diderot
- Gustave Flaubert
- Victor Hugo
- Moliére
- Michel de Montaigne
- Blaise Pascal
- Marcel Proust
- Francois Rabelais
- Jean Racine
- Arthur Rimbaud
- Jean Jacques Rousseau
- Jean-Paul Sartre
- Stendhal
- Paul Valery
- Francois Villon
- Voltaire
- Emile Zola
German language
- Heinrich Boll
- Bertold Brecht
- Hermann Broch
- Adolf Hitler, wrote "Mein Kampf"
- Hugo von Hofmannsthal
- Karl Kraus
- Robert Musil
- Novalis
- Erich Maria Remarque
- Rainer Maria Rilke
- Georg Trakl
Italian language
- Ludovico Ariosto
- Giovanni Boccaccio
- Benvenuto Cellini
- Dante Alighieri
- Dario Fo
- Carlo Goldoni
- Giacomo Leopardi
- Alessandro Manzoni
- Luigi Pirandello
- Torquato Tasso
- Giovanni Verga
Norwegian language
- Sigrid Undset, converted in 1924
Polish language
Portuguese language
Spanish language
- Isabel Allende
- Azorín (né José Martínez Ruiz)
- Jorge Luis Borges
- Pedro Calderón de la Barca
- Camilo José Cela
- Miguel de Cervantes
- Lopé de Vega
- Laura Esquivel
- Carlos Fuentes
- Federico García Lorca
- Gabriel García Marquez
- Pablo Neruda
- Octavio Paz
- Miguel de Unamuno
Science Fiction & Fantasy
- Stanisław Lem
- Walter M. Miller
- Clifford Simak
- J.R.R. Tolkien, child convert
- Jules Verne
- Gene Wolfe
Mystery
Clergy
Mathematicians and Natural Scientists
Painters and Artists
- Paul Cézanne
- Leonardo da Vinci, also inventor, anatomist, et al
- Michelangelo Buonarotti
- Michelangelo Caravaggio
- Salvador Dalí
- Edgar Degas
- Albrecht Durer
- Hubert Van Eyck
- Jan Van Eyck
- El Greco
- Francisco Goya
- Matthias Grunewald
- Edouard Manet
- Henri Matisse
- Pablo Picasso
- Auguste Renoir
- Peter Paul Rubens
- Titian
- Henri de Toulouse Lautrec
- Diego Velázquez
- Paolo Veronese
- Andy Warhol, né Warhola
Politicians
American
- Alfred E. Smith, former Governor of New York and Democratic Presidential Nominee, 1928; first major-party Roman Catholic to seek the U.S. Presidency
- John Fitzgerald Kennedy, 35th President of the United States
- Robert Francis Kennedy, 65th U.S. Attorney General and former U.S. Senator from New York
- Raymond Flynn, former Mayor of Boston, Massachusetts; and former Ambassador to the Holy See
- Rudy Giuliani, former Mayor of New York City
- Jerry Brown, 34th Governor of California and current Mayor of Oakland, California
- Richard J. Daley, former Mayor of Chicago, Illinois
- Richard M. Daley, current Mayor of Chicago, Illinois
- Antonio Villaraigosa, born Antonio Villar; Mayor of Los Angeles, California
- William Daley, former U.S. Secretary of Commerce, son of the former late Mayor of Chicago, Richard J. Daley, and a brother of the current Mayor of Chicago, Richard M. Daley (qvv)
- Ted Kennedy, U.S. Senator from Massachusetts since 1962
- John Kerry, U.S. Senator from Massachusetts and former Democratic Presidential Nominee, 2004
- Joe Biden, U.S. Senator from Delaware
- Mary Landrieu, U.S. Senator from Louisiana
- Mel Martinez, U.S. Senator from Florida
- Richard Durbin, U.S. Senator from Illinois
- Maria Cantwell, U.S. Senator from Washington
- David Vitter, U.S. Senator from Louisiana
- Barbara Mikulski, U.S. Senator from Maryland
- Susan Collins, U.S. Senator from Maine
- Lisa Murkowski, U.S. Senator from Alaska; daughter of Frank Murkowski (qv)
- Patty Murray, U.S. Senator from Washington
- Tom Daschle, former U.S. Senator from South Dakota and Senate Majority/Minority Leader; defeated in 2004
- Sam Brownback, U.S. Senator from Kansas; converted in 2002
- Rick Santorum, U.S. Senator from Pennsylvania
- George Voinovich, U.S. Senator from Ohio and former Governor of Ohio
- Mike DeWine, U.S. Senator from Ohio
- Jim Bunning, U.S. Senator from Kentucky; former baseball player (see Athletics, qv)
- Tom Harkin, U.S. Senator from Iowa
- Chris Dodd, U.S. Senator from Connecticut
- Jack Reed, U.S. Senator from Rhode Island
- Ken Salazar, U.S. Senator from Colorado
- Patrick Leahy, U.S. Senator from Vermont
- Pete Domenici, U.S. Senator from New Mexico
- John Sununu, U.S. Senator from New Hampshire
- Nancy Pelosi, U.S. Congresswoman from California and House Minority Leader
- John Dingell, U.S. Congressman from Michigan and current Dean of the House
- William Lacy Clay, U.S. Congressman from Missouri
- Dennis Kucinich, U.S. Congressman from Ohio
- Joe Knollenberg, U.S. Congressman from Michigan
- John Boehner, U.S. Congressman from Ohio
- Patrick Kennedy, U.S. Congressman from Ohio
- Dale Kildee, U.S. Congressman from Michigan
- James Langevin, U.S. Congressman from Rhode Island
- Martin Meehan, U.S. Congressman from Massachusetts
- Richard Neal, U.S. Congressman from Massachusetts
- James McGovern, U.S. Congressman from Massachusetts
- Ed Markey, U.S. Congressman from Massachusetts
- Mike Capuano, U.S. Congressman from Massachusetts
- Stephen Lynch, U.S. Congressman from Massachusetts
- Bill Delahunt, U.S. Congressman from Massachusetts
- Cynthia McKinney, U.S. Congresswoman from Georgia
- E. Clay Shaw, Jr., U.S. Congressman from Florida
- Maurice Hinchey, U.S. Congressman from New York
- Mike McNulty, U.S. Congressman from New York
- Carolyn McCarthy, U.S. Congressman from New York
- Peter T. King, U.S. Congressman from New York; Sinn Fein supporter
- John McHugh, U.S. Congressman from New York
- Jim Walsh, U.S. Congressman from New York
- Vito Fossella, U.S. Congressman from New York
- Chris Smith, U.S. Congressman from New Jersey
- Michael Ferguson, U.S. Congressman from New Jersey
- Gene Taylor, U.S. Congressman from Mississippi
- Bart Stupak, U.S. Congressman from Michigan
- Jon Porter, U.S. Congressman from Nevada
- Walter B. Jones, U.S. Congressman from North Carolina
- Virginia Foxx, U.S. Congressman from North Carolina
- Patrick McHenry, U.S. Congressman from North Carolina
- Butch Otter, U.S. Congressman from Idaho
- Silvestre Reyes, U.S. Congressman from Texas
- Charlie Gonzalez, U.S. Congressman from Texas
- Henry Cuellar, U.S. Congressman from Texas
- Michael McCaul, U.S. Congressman from Texas
- Bobby Jindal, U.S. Congressman from Louisiana
- Michael F. Doyle, U.S. Congressman from Pennsylvania
- Robert Brady, U.S. Congressman from Pennsylvania
- Phil English, U.S. Congressman from Pennsylvania
- Michael Fitzpatrick, U.S. Congressman from Pennsylvania
- Richard Pombo, U.S. Congressman from California
- Anna Eshoo, U.S. Congresswoman from California
- Loretta Sanchez, U.S. Congresswoman from California
- Linda Sanchez, U.S. Congresswoman from California
- Ellen Tauscher, U.S. Congresswoman from California
- Ginny Brown-Waite, U.S. Congresswoman from Florida
- Mark Foley, U.S. Congressman from Florida
- Ileana Ros-Lehtinen, U.S. Congresswoman from Florida
- Lincoln Diaz-Balart, U.S. Congressman from Florida
- Mario Diaz-Balart, U.S. Congressman from Florida
- Anne Northup, U.S. Congresswoman from Kentucky
- Henry Hyde, U.S. Congressman from Illinois
- Luis Gutierrez, U.S. Congressman from Illinois
- John Salazar, U.S. Congressman from Colorado; brother of Senator Ken Salazar
- James Moran, U.S. Congressman from Virginia
- John Lynch, Governor of New Hampshire
- Bill Owens, Governor of Colorado
- Brian Schweitzer, Governor of Montana
- Kathleen Sebelius, Governor of Kansas
- Christine Gregoire, Governor of Washington
- Ted Kulongoski, Governor of Oregon
- Arnold Schwarzenegger, Governor of California
- Mike Easley, Governor of North Carolina
- Jennifer Granholm, Governor of Michigan
- George Pataki, Governor of New York
- John Baldacci, Governor of Maine
- Frank Murkowski, Governor of Alaska; former U.S. Senator from Alaska
- Jim Doyle, Governor of Wisconsin
- Bill Richardson, Governor of New Mexico
- Felix Camacho, Governor of Guam
- Aníbal Acevedo-Vilá, Governor of Puerto Rico
- Mike Rounds, Governor of South Dakota
- John Hoeven, Governor of North Dakota
- Joe Manchin, Governor of West Virginia
- Donald Carcieri, Governor of Rhode Island
- Jeb Bush, born John Ellis Bush; Governor of Florida; converted in 1995
- Kathleen Babineaux Blanco, Governor of Louisiana
- Richard Codey, Acting Governor of New Jersey
- Michael Steele, Lieutenant Governor of Maryland (under Gov. Bob Ehrlich)
- Tommy Thompson, former Governor of Wisconsin, and former U.S. Secretary of Health and Human Services
- Jane Dee Hull, former Governor of Arizona
- Parris Glendening, former Governor of Maryland
- Paul Cellucci, former Governor of Massachusetts
- Frank Keating, former Governor of Oklahoma
- Gray Davis, né Joseph Graham Davis; former Governor of California
- Jim McGreevey, former Governor of New Jersey
- Craig Benson, former Governor of New Hampshire
- John Engler, former Governor of Michigan
- Don Siegelman, former Governor of Alabama
- George Sinner, former Governor of North Dakota
- Mike Johanns, former Governor of Nebraska; currently U.S. Secretary of Agriculture
- Joan Finney, former (deceased) Governor of Kansas
- Robert P. Casey, former (deceased) Governor of Pennsylvania
- Robert P. Casey, Jr., State Treasurer of Pennsylvania; probable Democrat candidate for Rick Santorum (qv)'s Senate Seat in 2006
- Jim Nicholson, U.S. Secretary of Veterans Affairs; former Chairman of the Republican National Committee; between 2001 and his appointment as Secretary of Veterans Affairs he served served as US Ambassador to the Holy See
- Lindy Boggs, christened Marie Corinne Morrison Claiborne; former Democrat U.S. Congresswoman from Louisiana, and former U.S. Ambassador to the Holy See
- Sargent Shriver, né Robert Sargent Shriver, Jr.; Democratic Vice-Presidential Nominee, 1972; married to Eunice Kennedy Shriver (daughter of Joseph P. Kennedy, qv), the founder of 'The Special Olympics', and father of 5, including Maria Shriver (qv)
- Jean Kennedy Smith, former Ambassador to the Republic of Ireland
- Joseph P. Kennedy, late father of 9, including former (deceased) U.S. President John F. Kennedy, former (deceased) U.S. Attorney General Robert F. Kennedy, U.S. Senator Edward M. Kennedy, and former Ambassador to the Republic of Ireland, Jean Kennedy Smith (qvv); grandfather of U.S. Congressman Patrick Kennedy and former Lieutenant Governor of Maryland, Kathleen Kennedy Townsend (qvv)
- Madeleine Albright, born Marie Jana Korbelova in Czechoslovakia and raised Catholic in England (parents were Catholic converts from Judaism, which she claims she never knew); former Secretary of State under President Bill Clinton
- Alberto Gonzales, former Texas Supreme Court Judge; currently U.S. Attorney General
- Rosario Marin, Mexican-born, but U.S. raised United States Treasurer
- L. Paul Bremer III, appointed Administrator of Iraq beginning on May 11, 2003 by George W. Bush, after the fall of Baghdad, until June 28, 2004, when sovereignty over the country reverted to the Iraqis; he converted with his wife to Roman Catholicism in 1994
Jurists
- Antonin Scalia, U.S. Supreme Court Justice
- Clarence Thomas, U.S. Supreme Court Justice
- Anthony Kennedy, U.S. Supreme Court Justice
- William Brennan, late former U.S. Supreme Court Chief Justice
- John G. Roberts, D.C. Circuit federal judge nominated to be a U.S. Supreme Court Justice
- William H. Pryor, Jr., former Alabama Attorney General who created the Republican Attorneys General Association (RAGA); now a lifetime judge on the 11th Circuit Court of Appeals
East European
- Leszek Balcerowicz
- Meglena Kuneva
- Aleksandr Kwasniewski
- Andrzej Zbigniew Lepper
- Hanna Suchocka
- Lech Wałęsa
Dictators
- Fidel Castro
- Hugo Chavez
- Francois "Papa Doc" Duvalier
- Francisco Franco
- Joseph Goebbels
- Heinrich Himmler
- Adolf Hitler
- Robert Mugabe
- Benito Mussolini
- Evita Perón
- Juán Perón
- Augusto Pinochet
- Alfredo Stroessner
Criminals and Misfits
- Albert Anastasia
- Joseph Barbara
- Joseph Bonanno
- "Whitey" Bulger
- Al Capone
- Paul Castellano
- Christopher Boyce
- Robert Chambers a.k.a. 'The Preppy Killer'
- Vincent Coll, a.k.a. 'Mad Dog Coll'
- Father Patrick Colleary
- Nicholas Corozzo
- Andrew Cunanan
- Aniello Dellacroce
- Sister Marie Docherty
- Judith Campbell Exner, also writer
- Dean Faiello
- Father Sean Fortune
- John Wayne Gacy
- Lorena Gallo (a.k.a Lorena Bobbitt)
- Carlo Gambino
- Father John Geoghan
- Sam Giancana
- Vincent Gigante a.k.a. 'Chin'
- John Gotti (Sr.)
- John Gotti, Jr.
- Sammy "The Bull" Gravano
- Robert Hanssen
- Richard Herrin
- Henry Hill
- Myra Hindley, convert (child killer)
- Charles Keating, Savings & Loan looter (not the actor with the same name)
- George "Machine Gun" Kelly
- Dennis Kozlowski
- Andrew Daulton Lee
- Mary Kay LeTourneau
- Lucky Luciano
- Owen 'Owney' Madden
- Timothy McVeigh, executed
- Joseph P. Murray
- Dion O'Bannon
- Danny Pelosi
- Charles Rebozo a.k.a. 'Bebe Rebozo'
- Dutch Schultz, converted for his wife before his death in 1935
- Dan White, acquitted of double murder with 'Twinkie defense'
Activists
- Robert Abplanalp, deceased
- Mary Cunningham Agee
- Richard V. Allen
- Carl A. Anderson, current Supreme Knight of the Knights of Columbus
- William Barr
- Paul Begala, TV pundit; political tactician/strategist
- Mark Belnick, convert
- William Bennett
- Daniel Berrigan, deceased
- Father Philip Berrigan, Josephite priest
- Richard Bond
- Mary Ellen Bork
- Robert Bork, convert
- Bernadette Brady
- Joseph I. Breen, deceased; movie censor for Catholic Church (starting 1934)
- Bishop Fabian Bruskewitz
- Patrick 'Pat' Buchanan
- William F. Buckley, Jr.
- Archbishop Raymond Burke
- Daniel Callahan
- Sidney Callahan, convert
- Hugh Carey, former NY State Governor
- Margaret Carlson, TV commentator, writer and columnist
- James Carville, political tactician/strategist
- William T. Cavanaugh
- Archbishop Charles Chaput
- César Chavez, deceased
- Linda Chavez
- Ronda Chervin
- Sister Joan Chittister, see also Authors, qv
- Mary Jo and Dick Copeland
- Father Charles Coughlin, deceased
- Dinesh D'Souza
- Dorothy Day, deceased
- Candace de Russy
- Terry Dolan, created GOPAC; deceased
- Thomas Reilly Donahue
- William A. Donohue
- Father Robert Drinan, former U.S. Congressman from Massachusetts
- Rev. Philip Eichner
- Sister Margaret Farley, PhD
- Sister Mara Faulkner, OSB
- Charles Feeney
- Father Lawrence Feeney
- Dr.Edwin J. Feulner Jr.
- Peter Flanigan
- Michael Flannery (Irish republican) and George Harrison (Irish republican), deceased
- Melinda French (Mrs. Bill Gates)
- Sister Irene Fugazy
- William Fugazy
- Maggie Gallagher, writer and columnist
- Martin Galvin
- Hutton Gibson
- Mary Ann Glendon
- Nellie Gray
- Dolores Bernadette Grier, convert
- Alexander Haig
- Sean Hannity
- Louise Day Hicks, deceased
- Helen Hull Hitchcock, convert
- Deal Hudson, convert
- Laura Ingraham
- Mother Jones, neé Mary Harris Jones, Irish-born labor activist; deceased
- Frances Kissling
- John Klink
- Judge Richard Kramer
- Laurence Kudlow, convert
- Bowie Kuhn
- Archbishop William Levada, Vatican-based
- G. Gordon Liddy, Jr.
- Juli Loesch
- Father Daniel Lord, S.J., deceased; movie censor for Catholic Church
- Veronica Lueken, deceased
- Michelle Malkin
- Mary Matalin, political tactician/strategist
- Alphonse J. Matt Jr.
- Terry McAuliffe
- Rev. C. John McCloskey, III, STD
- Norma McCorvey, convert
- Father Sean McManus
- George Meany, deceased AFL-CIO leader
- Ron Modras
- Thomas Monaghan
- Mother Angelica, created Eternal Word Television Network
- Mancow Muller
- Archbishop John Myers
- Dr. Bernard Nathanson, convert; went from pro-choice to anti-choice
- Robert Novak, TV commentator, writer and columnist; convert
- Kate O'Beirne, TV commentator, writer and columnist
- Brian O'Dwyer, son of late Paul O'Dwyer (qv)
- Paul O'Dwyer, deceased; father of Brian O'Dwyer (qv)
- Sister Helen Prejean
- William H. Pryor, Jr., former Alabama Attorney General who created the Republican Attorneys General Association (RAGA); now a federal judge on the 4th Circuit Court
- Martin Quigley, movie censor for Catholic Church (starting 1934); deceased
- Patrick Reilly, Cardinal Newman Society
- Charles E. Rice
- Zoe Romanowsky
- Margaret Sanger, founded Planned Parenthood
- Dana Scallon, neé Rosemary Brown
- Eleanor Schlafly and Anne Stewart Connell
- Phyllis Schlafly
- Jim and Michelle Seghers
- Frank Shakespeare
- Bishop Michael Sheridan
- Mark Shields, TV commentator, writer and columnist
- Dr. Janet E. Smith
- Mitch Snyder, deceased, convert
- Alan Spears, convert
- Sister Dorothy Stang, murdered in Brazil
- John Sweeney, AFL-CIO
- Sister Rose Thering
- Sister Marjorie Tuite
- Jack Valenti
- Mother Christine Vladimiroff, OSB, Abbess, Benedictines of Erie
- Chris Weinkopf
- Paul Weyrich, now a Melkite Greek Catholic deacon
- Charles M. Wilson (Catholic activist), connected to EWTN
- Thomas V. Wykes, Jr.
Athletics
- Muhammad Ali, (born Cassius Clay)-- since converted to Islam
- Felipe Alou
- Mario Ančić
- John Andretti
- Mario Andretti
- Charles Atlas
- Lenny Barker, convert
- Carmen Basilio, né Carmine Basilio
- Boris Becker
- Carlos Beltrán
- Brian Brennan
- Jim Bunning, see Politicians/qv
- Barry Bonds
- James Braddock, deceased
- Tom Brady
- Jennifer Capriati
- Primo Carnera, deceased
- Edouard Carpentier
- Georges Carpentier, deceased
- Vince Carter
- Roberto Clemente, deceased
- Eamonn Coghlan
- Kerry Collins
- Maureen Connolly a.k.a. 'Little Mo'; deceased
- Jimmy Connors
- Gerry Cooney
- Con Coughlin, died the day after suffering a knockout
- Dave DeBuscherre, deceased
- Joe DiMaggio, deceased
- Mike Ditka
- Leo Durocher, deceased
- Chris Evert
- Brett Favre
- Peggy Fleming
- Doug Flutie
- Dario Franchitti
- John Franco
- Nomar Garciaparra
- Steve Garvey
- Jason Giambi
- Bob Golic
- Mike Golic
- Andrzej Golota
- Chris Godfrey
- Steffi Graf
- Bob Griese
- Brian Griese
- Jerod Haase
- Padraig Harrington
- Bobby Hebert
- Russ Hochstein
- Goran Ivanisevic
- Derek Jeter
- Darius Kasparaitis
- Jim Kelly
- Nancy Kerrigan
- Kerry Kittles
- Bernie Kosar, Byzantine Catholic
- Mike Krzyzewski
- Courtney Kupets
- Guy Lafleur
- Jake LaMotta
- Tony LaRussa
- Al Leiter
- Claude Lemieux
- Mario Lemieux
- Tara Lipinski
- Kevin Lowe
- Vince Lombardi
- Iva Majoli
- Wellington Mara
- John Mara
- Rocky Marciano, deceased
- Dan Marino
- Roger Maris, deceased
- Billy Martin, deceased
- Amélie Mauresmo
- Lee Mazzilli
- John McEnroe
- Patrick McEnroe
- Jim McMahon, played for BYU
- Mark Messier
- Joe Montana
- Carlos Moya
- Joe Namath
- Heather O'Reilly
- Zigmund Palffy
- Joe Paterno
- Dan Patrick
- Floyd Patterson, convert
- Drazen Petrovic, deceased
- Andy Pettitte
- Mike Piazza
- Rick Pitino
- Ronan Rafferty
- Mariano Rivera
- Alex Rodriguez, A-ROD
- Ivan "Pudge" Rodriguez
- Babe Ruth, born George Ruth, Jr.; deceased
- Brendan Shanahan
- Jack Sharkey, né Josef Paul Zukauskas; deceased
- Don Shula
- Mike Shula
- Roger Staubach
- Sammy Sosa
- Rusty Staub, né Daniel J. Staub
- John Stockton
- Mike Sweeney
- Joe Torre
- Jim Tressel, convert
- Gene Tunney, deceased
- Johnny Unitas, deceased
- Bill Walton