John Glenn (1921–2016) was a U.S. Senator from Ohio from 1974 to 1999.
Senator Glenn may also refer to:
Archibald A. Glenn (1819–1901), Illinois State Senate Gene W. Glenn (1928–2023), Iowa State Senate Otis F. Glenn (1879–1959), U.S. Senator from Illinois from 1928 to 1933 Robert Broadnax Glenn (1854–1920), North Carolina State Senate Robert Glenn (Wisconsin politician) (1858–1915), Wisconsin State Senate Thomas L. Glenn (1847–1918), Idaho State Senate