List of United States senators from Oklahoma

Oklahoma was admitted to the Union on November 16, 1907, and elects United States senators to class 2 and class 3. The state's current U.S. senators are Republican James Lankford (serving since 2015) and Republican Alan Armstrong (serving since 2026). Oklahoma's longest-serving senator was Jim Inhofe, who served from 1994 to 2023.

List of senators

|- style="height:2em"

| colspan=3 | Vacant

| nowrap | Nov 16, 1907 – Dec 11, 1907

| Oklahoma did not elect its senators until one month after statehood.

| rowspan=4 | 1

| rowspan=2

| rowspan=2 | 1

| Oklahoma did not elect its senators until one month after statehood.

| nowrap | Nov 16, 1907 – Dec 11, 1907

| colspan=3 | Vacant

|- style="height:2em"

! rowspan=9 | 1

| rowspan=9 align=left | 100px Robert L. Owen

| rowspan=9 | Democratic

| rowspan=9 nowrap | Dec 11, 1907 – Mar 4, 1925

| rowspan=3 | Elected in 1907.

| Elected in 1907.

| rowspan=7 nowrap | Dec 11, 1907 – Mar 4, 1921

| rowspan=7 | Democratic

| rowspan=7 align=right | 100px Thomas Gore

! rowspan=7 | 1

|- style="height:2em"

| rowspan=3 | 2

| rowspan=3 | Re-elected in 1909.

|- style="height:2em"

| rowspan=3 | Re-elected in 1913.

| rowspan=3 | 2

|- style="height:2em"

| rowspan=3 | 3

| rowspan=3 | Re-elected in 1914.Lost renomination.

|- style="height:2em"

| rowspan=3 | Re-elected in 1918.Retired.

| rowspan=3 | 3

|- style="height:2em"

| rowspan=3 | 4

| rowspan=3 | Elected in 1920.Lost re-election.

| rowspan=3 nowrap | Mar 4, 1921 – Mar 4, 1927

| rowspan=3 | Republican

| rowspan=3 align=right | 100px John W. Harreld

! rowspan=3 | 2

|- style="height:2em"

! rowspan=3 | 2

| rowspan=3 align=left | 100px William B. Pine

| rowspan=3 | Republican

| rowspan=3 nowrap | Mar 4, 1925 – Mar 4, 1931

| rowspan=3 | Elected in 1924.Lost re-election.

| rowspan=3 | 4

|- style="height:2em"

| rowspan=3 | 5

| rowspan=3 | Elected in 1926.

| rowspan=12 nowrap | Mar 4, 1927 – Jan 3, 1951

| rowspan=12 | Democratic

| rowspan=12 align=right | 100px Elmer Thomas

! rowspan=12 | 3

|- style="height:2em"

! rowspan=3 | 3

| rowspan=3 align=left | 100px Thomas Gore

| rowspan=3 | Democratic

| rowspan=3 nowrap | Mar 4, 1931 – Jan 3, 1937

| rowspan=3 | Elected in 1930.Lost renomination.

| rowspan=3 | 5

|- style="height:2em"

| rowspan=3 | 6

| rowspan=3 | Re-elected in 1932.

|- style="height:2em"

! rowspan=3 | 4

| rowspan=3 align=left | 100px Joshua B. Lee

| rowspan=3 | Democratic

| rowspan=3 nowrap | Jan 3, 1937 – Jan 3, 1943

| rowspan=3 | Elected in 1936.Lost re-election.

| rowspan=3 | 6

|- style="height:2em"

| rowspan=3 | 7

| rowspan=3 | Re-elected in 1938.

|- style="height:2em"

! rowspan=3 | 5

| rowspan=3 align=left | 100px Edward H. Moore

| rowspan=3 | Republican

| rowspan=3 nowrap | Jan 3, 1943 – Jan 3, 1949

| rowspan=3 | Elected in 1942.Retired.

| rowspan=3 | 7

|- style="height:2em"

| rowspan=3 | 8

| rowspan=3 | Re-elected in 1944.Lost renomination.

|- style="height:2em"

! rowspan=7 | 6

| rowspan=7 align=left | 100px Robert S. Kerr

| rowspan=7 | Democratic

| rowspan=7 nowrap | Jan 3, 1949 – Jan 1, 1963

| rowspan=3 | Elected in 1948.

| rowspan=3 | 8

|- style="height:2em"

| rowspan=3 | 9

| rowspan=3 | Elected in 1950.

| rowspan=12 nowrap | Jan 3, 1951 – Jan 3, 1969

| rowspan=12 | Democratic

| rowspan=12 align=right | 100px Mike Monroney

! rowspan=12 | 4

|- style="height:2em"

| rowspan=3 | Re-elected in 1954.

| rowspan=3 | 9

|- style="height:2em"

| rowspan=4 | 10

| rowspan=4 | Re-elected in 1956.

|- style="height:2em"

| Re-elected in 1960.Died.

| rowspan=6 | 10

| rowspan=2

|- style="height:2em"

| rowspan=2 colspan=3 | Vacant

| rowspan=2 nowrap | Jan 1, 1963 – Jan 7, 1963

| rowspan=2 |  

|- style="height:2em"

| rowspan=3

| rowspan=5 | 11

| rowspan=5 | Re-elected in 1962.Lost re-election.

|- style="height:2em"

! 7

| align=left | 100px J. Howard Edmondson

| | Democratic

| nowrap | Jan 7, 1963 – Nov 3, 1964

| Appointed to continue Kerr's termLost nomination to finish Kerr's term.

|- style="height:2em"

! rowspan=5 | 8

| rowspan=5 align=left | 100px Fred R. Harris

| rowspan=5 | Democratic

| rowspan=5 nowrap | Nov 3, 1964 – Jan 3, 1973

| rowspan=2 | Elected to finish Kerr's term.

|- style="height:2em"

| rowspan=3 | Re-elected in 1966.Retired.

| rowspan=3 | 11

|- style="height:2em"

| rowspan=3 | 12

| rowspan=3 | Elected in 1968.

| rowspan=6 nowrap | Jan 3, 1969 – Jan 3, 1981

| rowspan=6 | Republican

| rowspan=6 align=right | 100px Henry Bellmon

! rowspan=6 | 5

|- style="height:2em"

! rowspan=3 | 9

| rowspan=3 align=left | 100px Dewey F. Bartlett

| rowspan=3 | Republican

| rowspan=3 nowrap | Jan 3, 1973 – Jan 3, 1979

| rowspan=3 | Elected in 1972.Retired.

| rowspan=3 | 12

|- style="height:2em"

| rowspan=3 | 13

| rowspan=3 | Re-elected in 1974.Retired.

|- style="height:2em"

! rowspan=8 | 10

| rowspan=8 align=left | 100px David Boren

| rowspan=8 | Democratic

| rowspan=8 nowrap | Jan 3, 1979 – Nov 15, 1994

| rowspan=3 | Elected in 1978.

| rowspan=3 | 13

|- style="height:2em"

| rowspan=3 | 14

| rowspan=3 | Elected in 1980.

| rowspan=14 nowrap | Jan 3, 1981 – Jan 3, 2005

| rowspan=14 | Republican

| rowspan=14 align=right | 100px Don Nickles

! rowspan=14 | 6

|- style="height:2em"

| rowspan=3 | Re-elected in 1984.

| rowspan=3 | 14

|- style="height:2em"

| rowspan=3 | 15

| rowspan=3 | Re-elected in 1986.

|- style="height:2em"

| rowspan=2 | Re-elected in 1990.Resigned to become President of the University of Oklahoma.

| rowspan=5 | 15

|- style="height:2em"

| rowspan=3

| rowspan=5 | 16

| rowspan=5 | Re-elected in 1992.

|- style="height:2em"

| colspan=3 | Vacant

| nowrap | Nov 15, 1994 – Nov 17, 1994

|- style="height:2em"

! rowspan=15 | 11

| rowspan=15 align=left | 100px Jim Inhofe

| rowspan=15 | Republican

| rowspan=15 nowrap | Nov 17, 1994 – Jan 3, 2023

| rowspan=2 | Elected in 1994 to finish Boren's term.

|- style="height:2em"

| rowspan=3 | Re-elected in 1996.

| rowspan=3 | 16

|- style="height:2em"

| rowspan=3 | 17

| rowspan=3 | Re-elected in 1998.Retired.

|- style="height:2em"

| rowspan=3 | Re-elected in 2002.

| rowspan=3 | 17

|- style="height:2em"

| rowspan=3 | 18

| rowspan=3 | Elected in 2004.

| rowspan=5 nowrap | Jan 3, 2005 – Jan 3, 2015

| rowspan=5 | Republican

| rowspan=5 align=right | 100px Tom Coburn

! rowspan=5 | 7

|- style="height:2em"

| rowspan=3 | Re-elected in 2008.

| rowspan=3 | 18

|- style="height:2em"

| rowspan=3 | 19

| rowspan=2 | Re-elected in 2010.Resigned.

|- style="height:2em"

| rowspan=3 | Re-elected in 2014.

| rowspan=3 | 19

| Elected in 2014 to finish Coburn's term.

| rowspan=9 nowrap | Jan 3, 2015 – present

| rowspan=9 | Republican

| rowspan=9 align=right | 100px James Lankford

! rowspan=9 | 8

|- style="height:2em"

| rowspan=3 | 20

| rowspan=3 | Re-elected in 2016.

|- style="height:2em"

| Re-elected in 2020.Resigned.

| rowspan=5 | 20

|- style="height:2em"

! rowspan=2 | 12

| rowspan=2 align=left | 100px Markwayne Mullin

| rowspan=2 | Republican

| rowspan=2 nowrap | Jan 3, 2023 – Mar 23, 2026

| rowspan=2 | Elected in 2022 to finish Inhofe's term.Resigned to become U.S. Secretary of Homeland Security.

| rowspan=5 | 21

| rowspan=5 | Re-elected in 2022.

|- style="height:2em"

| rowspan=3

|- style="height:2em"

! 13

| align=left| 100px Alan Armstrong

| | Republican

| nowrap | Mar 24, 2026 – present

| Appointed to finish Inhofe's term.Retiring at the end of term and resigning early to give his elected successor preferential seniority.

|- style="height:2em"

! 14

| align=left| TBD

| | TBD

| nowrap | TBD

| Incoming senator to be appointed to finish Inhofe's term, having already been elected to the next term.

|- style="height:2em"

| rowspan=2 colspan=5 | To be determined in the 2026 election.

| rowspan=2| 21

|- style="height:2em"

| 22

| colspan=5 | To be determined in the 2028 election.

List of United States senators from Oklahoma

List of senators

See also

References