Rudolf Eickemeyer Jr. (August 7, 1862 – April 25, 1932)[3] was an American pictorialist photographer, active in the late 19th and early 20th centuries.

He was one of the first Americans (along with Alfred Stieglitz) to be admitted to the Linked Ring,[2] and his photographs won dozens of medals at exhibitions around the world in the 1890s and early 1900s.

Eickemeyer's father had fled to New York in the early 1850s following political upheavals in his native Bavaria, and became a noted inventor.

[4] His firm, Osterheld and Eickemeyer, invented a hat-blocking machine that revolutionized the hat industry, and made a number of advancements in electrical lighting.

[2] While Eickemeyer's work appeared in Stieglitz's Camera Notes, he was unimpressed with the rise of the Stieglitz-led Photo-Secession early in the following century.

[2] The following year, he served as a judge in Kodak's international photography competition alongside Thomas Edison, John J. Pershing, Richard E. Byrd, and Benito Mussolini.

[1] Other well-known women photographed by Eickemeyer include opera singer Mary Garden and actress Lillian Russell.

[3] Eickemeyer also provided photographic illustration for books by several other authors, including In and Out of the Nursery (1900), a collection of poems written by his sister, Eva.