James, Jim or Jimmy Sullivan may refer to:
- James Sullivan (governor) (1744–1808), governor of Massachusetts, 1807–08
- James Mark Sullivan (1873–1935), American lawyer and diplomat
- James Sullivan (city manager) (1925–2012), American city manager
- Jim Sullivan (Wisconsin politician) (born 1967), state senator for Wisconsin's 5th Senate district
- Jim Sullivan (Irish republican) (died 1992), member of the Official IRA in Belfast at time of outbreak of Northern Ireland troubles
- Jimmy Sullivan (Queensland politician), Queensland, Australia politician
- James Sullivan (Victorian politician), Victoria, Australia politician (1817-1876)
- James Edward Sullivan (1862–1914), American Olympic official
- James Sullivan (athlete) (1885–1965), American Olympic athlete in 1906 and 1908
- Jim Sullivan (boxer) (1886–1949), British boxer
- Jimmy Sullivan (footballer) (1896–1983), Victorian Football League player
- Jim Sullivan (rugby, born 1903) (1903–1977), Welsh rugby league player
- Jim Sullivan (Australian footballer) (b. 1942), former Australian rules footballer
- Jim Sullivan (Australian rugby league) (fl. 1950s), Australian rugby league player
- Jim Sullivan (footballer) (1904–1974), English association footballer
- Jim Sullivan (1920s pitcher) (1894–1972), Major League baseball pitcher, 1921–1923
- Jim Sullivan (1890s pitcher) (1867–1901), Major League baseball pitcher, 1891–1898
- Jim Sullivan (curler) (1968–2011), Canadian curler