Rudolf Eickemeyer Jr. was an American pictorialist photographer, active in the late 19th and early 20th centuries. He was one of the first Americans to be admitted to the Linked Ring, and his photographs won dozens of medals at exhibitions around the world in the 1890s and early 1900s. He was famous among his contemporaries for his portraits of high-society women, most notably model and singer Evelyn Nesbit. Eickemeyer's best-known photographs are now part of the collections of the Smithsonian Institution.