Senator Erwin may refer to:
Austin W. Erwin (1887–1965), New York State Senate Charles K. Erwin (1837–1907), Wisconsin State Senate George Z. Erwin (1840–1894), New York State Senate Hank Erwin (born 1949), Alabama State Senate James Erwin (politician) (1920–2005), Maine State Senate Richard Erwin (1923–2006), North Carolina State Senate
See also Senator Irwin (disambiguation)