John Leo Hafen (May 23, 1880 – June 21, 1942) was an American photographer and artist and the first person to bring color photography to Utah. Attending school in Springville, Utah, and Salt Lake City, Hafen experimented with different art forms. He received the Utah Arts Council Award for Best Amateur Work in Photography in 1899. He also won an award at the Art Institute in 1907 and won a Special Merit award from Desert Magazine in 1940. He co-owned the Olsen and Hafen photographic gallery in Provo, Utah, and toured with photographer George Edward Anderson. In 1908, Hafen married Daisy Marie Nelson, who died in childbirth in 1908. One year later, Hafen married Ella Lowry and had five children with her. A member of the Church of Jesus Christ of Latter-day Saints, Hafen was excommunicated for his involvement with the West Tintic Branch, whose members were found guilty of practicing "wife sacrifice", a form of wife swapping which they considered to be religiously justified.