| Senator |
Party |
Took office |
Left office |
Reason |
Notes/other offices |
| Thomas B. Catron |
 |
Republican |
March 27, 1912 |
March 4, 1917 |
Retired |
|
| Andrieus A. Jones |
 |
Democrat |
March 4, 1917 |
December 20, 1927 |
Died |
|
| Bronson M. Cutting |
 |
Republican |
December 29, 1927 |
December 6, 1928 |
Retired |
|
| Octaviano
Larrazolo |
 |
Republican |
December 7, 1928 |
March 4, 1929 |
Retired |
Governor of New
Mexico (1919–1921) |
| Bronson M. Cutting |
 |
Republican |
March 4, 1929 |
May 6, 1935 |
Died |
|
| Dennis Chavez |
 |
Democrat |
May 11, 1935 |
November 3, 1962 |
Died |
|
| Edwin L. Mechem |
 |
Republican |
November 30, 1962 |
November 3, 1964 |
Lost special election |
Governor of New
Mexico (1951–1954; 1957–1958; 1961–1962) |
| Joseph Montoya |
 |
Democrat |
November 4, 1964 |
January 3, 1977 |
Lost re-election |
Lieutenant
Governor of New Mexico (1947–1951; 1955–1957) |
| Harrison Schmitt |
 |
Republican |
January 3, 1977 |
1983 |
Lost re-election |
Astronaut (1965–1975) |
| Jeff Bingaman |
 |
Democrat |
January 3, 1983 |
Incumbent |
|
New Mexico Attorney
General (1979–1982) |
|