James Aloysius "Jim" Farley (May 30, 1888–June 9, 1976) was an American politician, business executive, and dignitary who served as head of the Democratic National Committee and as Postmaster General. Farley was the campaign manager for New York State politicians Alfred E. Smith and Franklin D. Roosevelt's gubernatorial campaigns as well as F.D.R.'s Presidential campaigns in 1932 and 1936. Farley predicted large landslides in both, and revolutionized the use of polling, and polling data. Farley was responsible for pulling together the New Deal Coalition of Catholics, labor unions, blacks, and farmers for F.D.R.. Farley, and the administration's patronage machine he presided over, helped to fuel the social and infrastructure programs of the New Deal. Farley opposed Franklin Roosevelt breaking the two term tradition of the Presidency, and broke with Roosevelt on that issue in 1940.

As of 1942, Farley was considered the supreme Democratic Party Boss of New York. Farley served as the #2 commissioner on the second Hoover Commission, which helped to develop American modern law in regards to executive powers and the presidency. The Landmark James Farley Post Office (James A. Farley Building/former General Post Office Building) in New York City is designated in his honor. (H. Res.368, 3/2/1982)

Farley was born in Grassy Point, New York, one of five sons whose grandparents were Irish Catholic immigrants. His father was involved in the brick-making industry, first as a laborer and later as a part owner of three small schooners engaged in the brick-carrying trade.