Benjamin Marie Petit (April 8, 1811 – February 10, 1839) was a Catholic missionary to the Potawatomi at Twin Lakes, Indiana,where he served from November 1837 to September 1838. A native of Rennes in Brittany, France, Petit was trained as a lawyer at the University of Rennes, but left the profession after three years to enter the Saint-Sulpice Seminary in Paris to study for the priesthood. In 1836 he decided to move to the United States to become a missionary among the Native Americans. He traveled to New York with a group led by Bishop Simon Bruté, the first bishop of the Catholic Diocese of Vincennes. Petit was sent to Vincennes, Indiana, where Bishop Bruté ordained him as a Roman Catholic priest on October 14, 1837. Within a month the bishop sent the newly ordained priest to work among