Senator Richardson may refer to:
Member of the Australian Senate
Graham Richardson (born 1949), member of the Australian Senate from 1983 to 1994
Member of the Northern Irish Senate Henry Richardson (Northern Ireland politician) (1883–?), Northern Irish Senator from 1949 to 1957
Members of the United States Senate Harry A. Richardson (1853–1928), U.S. Senator from Delaware from 1907 to 1913 William Alexander Richardson (1811–1875), U.S. Senator from Illinois from 1863 to 1865
United States state senate members Bryant Richardson (fl. 2010s), Delaware State Senate Elaine Richardson (politician) (born 1940), Arizona State Senate Gary Richardson (Arizona politician) (fl. 1990s–2000s), Arizona State Senate George Francis Richardson (1829–1912), Massachusetts State Senate H. L. Richardson (1927–2020), California State Senate Hamilton Richardson (1820–1906), Wisconsin State Senate Harris S. Richardson (1887–1976), Massachusetts State Senate Harrison Richardson (1930–2009), Maine State Senate James Burchill Richardson (1770–1836), South Carolina James D. Richardson (1843–1914), Tennessee State Senate John Peter Richardson II (1801–1864), South Carolina Mel Richardson (1928–2014), Idaho State Senate William B. Richardson (1874–1945), Minnesota State Senate William P. Richardson (New York politician) (1848–1923), New York State Senate