Senator Marsh may refer to:
Christine Marsh (fl. 2020s), Arizona State Senate Daniel G. Marsh (born 1937), Washington State Senate Del Marsh (born 1956), Alabama State Senate Gordon F. Marsh (1908–1982), Virginia State Senate Henry L. Marsh (1933–2025), Virginia State Senate Shirley Marsh (1925–2014), Nebraska State Senate Spencer M. Marsh (1864–1932), Wisconsin State Senate Spencer S. Marsh (died 1875), North Carolina State Senate