Julius (Julien) Bien (1826 - 1909) was an American lithographer and engraver based in New York City. Bien was born in Naumburg, Germany. He was educated at the Academy of Fine Arts in Cassell and at Stadel's Institute in Frankfurt. Following the suppression of the anti-autocratic German Revolutions of 1848, Bien, who participated in the pan-German movement, found himself out of favor in his home country and joined the mass German immigration to the United States. Around 1850 Bien established the New York Lithographing, Engraving & Printing Company in New York that focused on the emergent chromo-lithograph process - a method of printing color using lithographic plates. His work drew the attention of the U.S. Government Printing Office which contracted him to produce countless government maps and surveys, including the Pacific Railroad Surveys, the census, numerous coast surveys, and various maps relating to the American Civil War. Bien also issued several atlases both privately and in conjunction with a relation, Joseph Bien. At the height of his career Bien was elected president of the American Lithographers Association.