Senator Jackson may refer to:
Ireland Seanad Éireann (Irish Free State): Arthur Jackson (Irish politician) (1853–1938), independent member from 1922 to 1928
Mexico Senate of the Republic: Enrique Jackson (1945–2021), Senator-at-Large from 2000 to 2006
United States United States Senate: Andrew Jackson (1767–1845), U.S. Senator from Tennessee from 1797 to 1798 and from 1823 to 1825 Henry M. Jackson (1912–1983), U.S. Senator from Washington from 1953 to 1983 Howell E. Jackson (1832–1895), U.S. Senator from Tennessee from 1881 to 1886 James Jackson (Georgia politician) (1757–1806), U.S. Senator from Georgia from 1793 to 1795 and from 1801 to 1806 Jesse Jackson (1941–2026), shadow U.S. Senator for the District of Columbia from 1991 to 1997 Samuel D. Jackson (1895–1951), U.S. Senator from Indiana in 1944 William P. Jackson (1868–1939), U.S. Senator from Maryland from 1912 to 1914
State senates: Alvin B. Jackson (fl. 2000s–2010s), Utah State Senate Bill Jackson (politician) (born 1932), Georgia State Senate Claiborne Fox Jackson (1806–1862), Missouri State Senate Clingan Jackson (1907–1997), Ohio State Senate Darrell Jackson (politician) (born 1957), South Carolina State Senate Douglas S. Jackson (born 1954), Tennessee State Senate Ed Jackson (Tennessee politician) (born 1948), Tennessee State Senate Gary Jackson (politician) (born 1950), Mississippi State Senate George Jackson (Virginia politician) (1757–1831), Virginia State Senate Hancock Lee Jackson (1796–1876), Missouri State Senate Henry M. Jackson (1912–1983), Washington State Senate Jack Jackson Jr. (fl. 2000s–2010s), Arizona State Senate Jack Jackson Sr. (born 1933), Arizona State Senate Jeff Jackson (politician) (born 1980s), North Carolina State Senate Jonathan Jackson (Massachusetts politician) (1743–1810), Massachusetts State Senate Joseph Webber Jackson (1796–1854), Georgia State Senate Lester Jackson (fl. 1990s–2000s), Georgia State Senate Lloyd G. Jackson (1918–2011), West Virginia State Senate Lydia P. Jackson (born 1960), Louisiana State Senate Mike Jackson (Texas politician) (born 1953), Texas State Senate Morris Jackson (1918–2004), Ohio State Senate Sampson Jackson (born 1953), Mississippi State Senate Troy Jackson (born 1968), Maine State Senate Verdell Jackson (born 1941), Montana State Senate W. Brent Jackson (born 1957), North Carolina State Senate