William Finnemann was a German-born Catholic bishop and member of the Society of the Divine Word who served in the Philippines. Born in 1882 in Soest, he moved to the Philippines in 1912 to perform missionary work, eventually becoming the auxiliary bishop of Manila and the vicar apostolic of Calapan. During the Japanese occupation in World War II, he became known for his courageous defense of civilians and church property. He was killed in 1942 after refusing to surrender a convent to occupying forces.