18th-century French Jesuits

Sébastien Rale (also Racle, Râle, Rasle, Rasles, and Sebastian Rale (January 20, 1657 – August 23, 1724) was a French Jesuit missionary and lexicographer who preached amongst the Abenaki and encouraged their resistance to British colonization during the early 18th century. This encouragement culminated in Dummer's War (1722–1725), where Rale was killed by a group of New England militiamen. Rale also worked on an Abenaki-French dictionary during his time in North America.

Marc-Antoine Laugier (Manosque, Provence, January 22, 1713 – Paris, April 5, 1769) was a Jesuit priest until 1755 than a Benedictine monk. He was one of the first architectural theorists.

Joseph-Ignace Guillotin (28 May 1738 – 26 March 1814) was a French physician, politician and freemason who proposed on 10 October 1789 the use of a device to carry out death penalties in France, as a less painful method of execution than existing methods. Although he did not invent the guillotine and opposed the death penalty, his name became an eponym for it. The actual inventor of the prototype was a man named Tobias Schmidt, working with the king's physician, Antoine Louis.

François Xavier d'Entrecolles (1664 in Lyon – 1741 in Beijing; Chinese name: 殷弘绪, Yin Hongxu) was a French Jesuit priest, who learned the Chinese technique of manufacturing porcelain through his investigations in China at Jingdezhen with the help of Chinese Catholic converts between 1712 and 1722, during the rule of the Kangxi Emperor. His observations were published in a long letter in 1712, and carefully studied in several European countries, even though Meissen porcelain was already making hard-paste porcelain in Germany by then. The letter's author was given as Père d'Entrecolles ("Father d'Entrecolles"), and he is still very often referred to as this.

Jean-Baptiste Chappe d'Auteroche (23 March 1722 – 1 August 1769) was a French astronomer, best known for his observations of the transits of Venus in 1761 and 1769.

Jean Nicolas Grou (23 November 1731 – 13 December 1803) was a French Roman Catholic Jesuit priest, teacher, translator and mystic and spiritual writer. After the suppression of the Jesuit order he sought sanctuary in the Dutch Republic. He returned to France, but at the outbreak of the French Revolution he escaped to England where he gained refuge with a wealthy English household in Dorset whose house chaplain he became while continuing his literary output.

Claude de Visdelou (12 August 1656 – 11 November 1737) was a French Jesuit missionary.

Joseph-François Lafitau (May 31, 1681 – July 3, 1746) was a French Jesuit missionary, ethnologist, and naturalist who worked in Canada. He is best known for his use of the comparative method in the field of scientific anthropology, the discovery of ginseng, and his writings on the Iroquois. Lafitau was the first of the Jesuit missionaries in Canada to have a scientific point of view. Francis Parkman praises Lafitau, stating, "none of the old writers are so satisfactory as Lafitau."

Louis Bertrand Castel (5 November 1688 – 11 January 1757) was a French mathematician born in Montpellier, who entered the order of the Jesuits in 1703. Having studied literature, he afterwards devoted himself entirely to mathematics and natural philosophy. After moving from Toulouse to Paris in 1720, at the behest of Bernard de Fontenelle, Castel acted as the science editor of the Jesuit Journal de Trévoux.

Nicolas Mahudel (21 November 1673 – 7 March 1747) was a French antiquary interested in prehistoric research. He proposed the chronological prehistoric sequence Stone Age - Bronze Age - Iron Age. Mahudel was for a time a Jesuit and later in his life a Trappist.