Arnold Rönnebeck (May 8, 1885 – November 14, 1947) was a German-born American modernist artist and museum administrator.
He was a vital member of both the European and American avant-garde movements of the early twentieth century before settling in Denver, Colorado.
Rönnebeck is best known for his lithographs that featured a range of subjects including New York cityscapes, New Mexico and Colorado landscapes and Native American dances.