Senator Farnsworth may refer to:
Daniel D. T. Farnsworth (1819–1892), West Virginia State Senate Dave Farnsworth (born 1951), Arizona State Senate Eddie Farnsworth (born 1961), Arizona State Senate Hiram Warner Farnsworth (1816–1899), Territorial Senate of Kansas Robert Farnsworth (politician) (fl. 2020s), Minnesota State Senate Thomas J. Farnsworth (1829–1916), West Virginia State Senate Walter K. Farnsworth (1870–1929), Vermont State Senate