G
- Saint Henry Garnett, first English Provincial; executed after being implicated in the Gunpowder Plot
- Saint Charles Garnier, North America martyr
- John Gerard, English Jesuit; one of the few men to escape from the Tower of London
- Jean-François Gerbillon, early missionary to China
- Filippo Salvatore Gilij, contributor in the field of South American historical linguistics
- Paul Goethals, Belgian, first Archbishop of Calcutta
- Saint Aloysius Gonzaga, Italian priest; patron saint of students
- Thyrsus González, Spanish 13th Superior General of the Society of Jesus
- John Goodman, jailed in England during the Long Parliament
- Saint John Soan de Goto, martyred in Japan
- Saint René Goupil, Jesuit brother and North American martyr
- Baltasar Gracián, Spanish prose writer
- Francesco Maria Grimaldi, 17th-century Italian mathematician, physicist and astronomer; accurately mapped the Moon; one of the first to suggest the wave-like nature of light
- Paul Guldin father of Guldinus theorem
- José Gumilla, Naturalist who studied the Orinoco, South America
- Bartolomeu de Gusmão, Brazilian-Portuguese priest and mathematician; said to be an early inventor of the dirigible
Read more about this topic: List Of Jesuits