Rudolph Siemering (10 August 1835, Königsberg - 23 January 1905, Berlin) was a German sculptor, known for his works in both Germany and the United States.

In 1860 he produced his "Penelope" and in 1860 a sitting figure in marble of King Wilhelm for the Exchange in Berlin; and a terra-cotta statue of Leibnitz for the Academy of Science at Perth, Australia, productions remarkable for realistic modeling and imposing expression.

In 1871 he executed the masterly relief "Uprising of the People at the Summons of their King"; and the following year a design for the Goethe monument.

For the market square at Leipzig, he made a war monument: “Germany,” as an armed heroine (1888).

He was the author of the colossal equestrian statue of Washington whose pedestal is enriched with reliefs and accessory sculptures.