Mary Clara Nanetti was an Italian nun and missionary belonging to the Franciscan Missionaries of Mary. Born Clelia Nanetti in 1872 in Occhiobello, Italy, she entered her religious order in 1892. She traveled to Taiyuan, China, in 1899 as part of a group of seven sisters tasked with establishing an orphanage. During the Boxer Rebellion, she refused to renounce her religious convictions, leading to her death during the Taiyuan massacre in July 1900.