Senator Gillespie may refer to:
Ann Gillespie (politician) (born 1958 or 1959), Illinois State Senate Bill Gillespie (politician) (1928–2008), Florida State Senate Bruce Gillespie (politician) (born 1946), Montana State Senate Christi Gillespie (fl. 2010s–2010s), Oklahoma State Senate James Gillespie (North Carolina politician) (1747–1805), North Carolina Senate James J. Gillespie (1892–1959), Iowa State Senate Jerry Gillespie (politician) (1950–2011), Arizona State Senate Joseph Gillespie (1809–1885), Illinois State Senate