John Hafen (March 22, 1856, Scherzingen, Switzerland - June 3, 1910, Brown County, Indiana) was an American landscape artist. In 1890, he was one of a group of painters who studied in Paris under the sponsorship of The Church of Jesus Christ of Latter-day Saints (LDS Church), in preparation for painting murals at the nearly completed Salt Lake Temple.
His family converted to the LDS Church and emigrated to the United States when he was six, making the journey from Omaha to Utah by ox team. Originally they settled in Payson, but moved to Salt Lake City in 1868, so he could attend school. He was enrolled at the 20th Ward Academy, where one of his teachers was Karl G. Maeser.
Drawing was one of the subjects taught there, and he displayed an early talent for art. Over the next ten years, he was tutored by George M. Ottinger and Dan Weggeland; instructors at the University of Deseret (now the University of Utah). He also learned photography and worked as an assistant to George Edward Anderson. In 1881, Hafen and a group of young artists founded the Utah Art Association, organizing exhibitions and providing art instruction.
In 1890, he convinced the LDS Church leadership to sponsor art studies in France. Together with John Fairbanks, Lorus Pratt and Edwin Evans, Hafen was awarded a two-year scholarship to study at the Académie Julian in Paris, where their primary instructor was Albert Rigolot, and they became known as the "French Art Missionaries". While there, his first experiences with plein air painting (and, perhaps, memories of his father, who was a gardener) encouraged him to devote himself to landscapes. Due to family financial difficulties, he had to return after only one year and was the first of his group to begin work at the Temple, playing a major role in the initial mural planning.