Senator McCullough may refer to:
Charles McCullough (Northern Ireland politician) (1923–2014), Northern Irish Senate Frank S. McCullough (1905–1998), New York State Senate Henry M. McCullough (1858–1930), Maryland State Senate Hiram McCullough (1813–1885), Maryland State Senate James J. McCullough (born 1942), New Jersey State Senate John G. McCullough (1835–1915), California State Senate and Vermont State Senate
See also Senator McCulloch (disambiguation)