Timothy Sullivan ("Big Tim" Sullivan) (1862–1913) was a New York politician who controlled Manhattan's Bowery and Lower East Side districts.
Tim or Timothy Sullivan may also refer to:
Arts and literature Tim Sullivan (writer) (1948–2024), American science fiction author Timothy Sullivan (composer) (born 1954), Canadian composer Tim Sullivan (British filmmaker) (born 1958), British film director and screenwriter Tim Sullivan (director) (born 1964), American film director and screenwriter
Sports Ted Sullivan (baseball) (Timothy Sullivan, 1851–1929), Irish baseball player and manager Tim Sullivan (athlete) (born 1975), Australian Paralympic track and field athlete Tim Sullivan (sports columnist), American sports journalist
Other Timothy Daniel Sullivan (1827–1914), Irish politician and poet Timothy Sullivan (Medal of Honor) (1835–1910), American Civil War sailor Timothy Sullivan (Irish judge) (1874–1949), Chief Justice of Ireland Timothy J. Sullivan (born 1944), American academic, President of the College of William and Mary Timothy S. Sullivan (fl. 1970s–2010s), United States Coast Guard rear admiral
See also Timothy Sulivan (born 1946), British Army officer