Claudius Ulysses Stone (born May 11, 1879) was a Democratic member of the United States House of Representatives from Illinois. Representing Illinois’s 16th Congressional District, he served three terms in Congress during the early twentieth century. His tenure in federal office began on April 4, 1911, and concluded on March 3, 1917.

Stone held the role of Representative as a member of the Democratic Party, serving continuously in the U.S. House of Representatives for three terms. During this period, he was a historical member of Congress from Illinois, associated specifically with the 16th District. After March 3, 1917, he left office and is recorded as a former representative, with no further official positions, committee assignments, or contact details provided in the available record.