Timothy Daniel Sullivan (July 23, 1862 – August 31, 1913) was a New York politician who controlled Manhattan's Bowery and Lower East Side districts as a prominent leader within Tammany Hall. He was known euphemistically as "Dry Dollar", as the "Big Feller", and later as "Big Tim" because of his physical stature. He amassed a large fortune as a businessman running vaudeville and legitimate theaters, as well as nickelodeons, race tracks, and athletic clubs.