Jay Stone (1851–1932) was the 'Chief of the Correspondence Division' in the United States War Department in the late nineteenth and early twentieth centuries. In a period without 'Assistant Secretaries', this was the second highest-ranking civil service position in this cabinet-level department, under the Chief Clerk (who sometimes served as Acting Secretary of War). Stone retired in 1928 as the department's longest-serving civilian employee (50 years).