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- Stefan Raab - German entertainer and comedian (Aloisiuskolleg, the Jesuit gymnasium in Bad Godesberg, Germany)
- Karl Rahner - German theologian
- Narasimhan Ram - editor-in-chief of The Hindu (Loyola College, Chennai)
- Jorge Ramos - journalist with Univision (Universidad Iberoamericana)
- Mark Raper - Oceania Provincial superior of the Society of Jesus (St Ignatius' College, Riverview, Sydney)
- Hubert Reeves - Astrophysicist (College Jean-de-Brebeuf, Montreal)
- Hans Riegel - German entrepreneur (Haribo)
- Matteo Ricci - Italian Jesuit priest responsible for much of the introduction of Western culture to China
- Cardinal Richelieu - French statesman (Collège de Navarre, Collège de Calvi)
- Isabel Rico De Garcia - Curator/Art Historian, Instituto Cultural De Mexico (Universidad Iberoamericana)
- Arturo Ripstein - film director and producer (Universidad Iberoamericana)
- Jose Rizal - author, surgeon, linguist, led independence movement against Spanish rule in the Philippines (Ateneo de Manila University)
- Maximilien Robespierre - French statesman (Collège de Clermont, Paris)
- Sam Roberts - Canadian singer
- Fr. Joseph Roccosalvo - novelist, Orientalist, priest, playwright (Brooklyn Prep, Fordham University)
- Jacques Rogge - chairman of the International Olympic Committee (Sint-Barbaracollege, Ghent, Belgium)
- Michel Rojkind - Mexican architect and former musician of Russian descent (Universidad Iberoamericana)
- Al Roker - American TV meteorologist (Xavier High School, New York)
- Óscar Romero - Priest and martyr (Gregorian University, Rome, Italy)
- Blessed Theodore Romzha - Ruthenian Catholic Church's Bishop of Mukachevo, martyr under Joseph Stalin (Collegium Russicum)
- Fr. Heribert Rosweyde - Jesuit priest and hagiographer, original compiler-writer-editor for Acta Sanctorum continued by the Bollandists, taught philosophy at Douai
- Manuel Roxas II - Philippine Senator (Ateneo de Manila University)
- Pete Rozelle - American football commissioner (University of San Francisco)
- Peter Paul Rubens - Flemish painter of the 17th century, Antwerp
- Alberto Ruiz-Gallardón - Spanish politician (Jesuit Colegio de Nuestra Señora del Recuerdo)
- Bill Russell - American basketball player (University of San Francisco)
- Mark Russell - American political comedian (Canisius High School, Buffalo, New York)
- Tim Russert - America politician and anchorman (Canisius High School and John Carroll University)
- Joseph Russoniello - two-time U.S. Attorney for the Northern District of California (Fairfield University)
- Leo Ryan - member of U.S. House Of Representatives (D-California) assassinated during Jonestown Massacre (Creighton University and Campion High School)
Read more about this topic: List Of Alumni Of Jesuit Educational Institutions