William Wallace Eaton (born October 11, 1816) was a Democratic member of the United States House of Representatives from Connecticut. He represented Connecticut’s 1st Congressional District and is recorded as having served as a historical member of Congress during the late nineteenth century. Eaton’s congressional service is identified with the period from December 6, 1875, to March 3, 1885.

During this time, Eaton served as a Representative for Connecticut over the course of two terms, reflecting his repeated selection to represent the 1st District in the U.S. House. His tenure in Congress placed him among the Democratic lawmakers of his era, participating in the national legislative process on behalf of his state. Eaton is noted in the historical record as a former officeholder, with no additional committee assignments, offices, or contact details preserved in the available metadata.