Thomas Downing may be: Thomas Downing (restaurateur) (1791–1866), American abolitionist and restaurateur Thomas Downing (athlete) (1883–1943), Irish Olympic athlete Thomas Downing (painter) (1928–1985), American painter Thomas J. Downing (1867–1927), American politician Thomas N. Downing (1919–2001), American politician and grandson of Thomas J. Downing