C
- Niccolò Cabeo, many early contributions to physics
- Saint Edmund Campion, English martyr
- Saint Petrus Canisius, Dutch theologian, writer of the widely-used Little Catechism; Doctor of the Church
- John Carroll, first bishop of the United States and founder of Georgetown University
- Paolo Casati, Mathematician, supported Galileo..
- John II Casimir Vasa, king of the Polish-Lithuanian Commonwealth
- Louis Bertrand Castel, French Scientist
- Leonardo Castellani, 20th-century Argentine writer and theologian
- Giuseppe Castiglione, Italian Jesuit brother; artist to the Chinese Emperor
- Saint Juan del Castillo, martyr of the Río de la Plata
- Jean Pierre de Caussade, spiritual director, college rector, and author of Abandonment to Divine Providence
- Michel de Certeau, French cultural theorist
- Francesco Cetti, mathematician and zoologist
- Pierre Teilhard de Chardin, French paleontologist, theologian/philosopher and spiritual writer
- Saint Noël Chabanel, North American martyr
- Pierre Cholonec, Superior of Montreal
- Walter Ciszek, missionary and religious prisoner in Soviet Union; author
- Saint Peter Claver, Spanish missionary in South America
- Christopher Clavius main architect of the modern Gregorian calendar
- Saint Claude de la Colombière, preacher to the seventh Duchess of York, Mary of Modena
- Louis Le Comte, early missionary to China
- Guy Consolmagno
- Frederick Copleston, English writer, author of the definitive History of Philosophy
- John M. Corridan, labor activist and "Waterfront priest" whose story inspired the classic film On the Waterfront
- Horacio de la Costa, Philippine historian and the first Filipino Jesuit provincial superior in the Philippines
- Jacques Courtois, 17th-century French painter
- Saint Roque González de Santa Cruz, Paraguayan missionary and martyr
- Johann Baptist Cysat, published the first printed European book concerning Japan
- Stanisław Czerski, Polish graphic designer
Read more about this topic: List Of Jesuits