List of presidents of the Oregon State Senate
This is a complete list of people who have served as president of the Oregon State Senate.
| Number | Session | Type | Name | County represented | Political party |
| 1 | 1859 | Special | Luther Elkins | Linn | Democratic |
| 1 | 1860 | Regular | Luther Elkins | Linn | Democratic |
| 2 | 1862 | Regular | Wilson Bowlby | Washington | Republican |
| 3 | 1864 | Regular | John H. Mitchell | Multnomah | Republican |
| 3 | 1865 | Special | John H. Mitchell | Multnomah | Republican |
| 4 | 1866 | Regular | Thomas R. Cornelius | Washington | Republican |
| 5 | 1868 | Regular | Benjamin [Franklin Burch] | Polk | Democratic |
| 6 | 1870 | Regular | James D. Fay | Jackson | Democratic |
| 6 | 1872 | Regular | James D. Fay | Jackson | Democratic |
| 7 | 1874 | Regular | Robert B. Cochran | Lane | Democratic |
| 8 | 1876 | Regular | John Whiteaker | Lane | Democratic |
| 8 | 1878 | Regular | John Whiteaker | Lane | Democratic |
| 9 | 1880 | Regular | Solomon Hirsch | Multnomah | Republican |
| 10 | 1882 | Regular | William J. McConnell | Yamhill | Republican |
| 11 | 1885 | Regular Special | William Waldo | Marion | Republican |
| 12 | 1887 | Regular | John C. Carson | Multnomah | Republican |
| 13 | 1889 | Regular | Joseph Simon | Multnomah | Republican |
| 13 | 1891 | Regular | Joseph Simon | Multnomah | Republican |
| 14. | 1893 | Regular | Charles W. Fulton | Clatsop | Republican |
| 13 | 1895 | Regular | Joseph Simon | Multnomah | Republican |
| 13 | 1897 | Regular | Joseph Simon | Multnomah | Republican |
| 13 | 1898 | Special | Joseph Simon | Multnomah | Republican |
| 15 | 1899 | Regular | T. C. Taylor | Umatilla | Republican |
| 14 | 1901 | Regular | Charles W. Fulton | Clatsop | Republican |
| 16 | 1903 | Regular Special | George C. Brownell | Clackamas | Republican |
| 17 | 1905 | Regular | William Kuykendall | Lane | Republican |
| 18 | 1907 | Regular | Edward W. Haines | Washington | Republican |
| 19 | 1909 | Regular Special | Jay Bowerman | Gilliam | Republican |
| 20 | 1911 | Regular | Ben Selling | Multnomah | Republican |
| 21 | 1913 | Regular | Daniel J. Malarkey | Multnomah | Republican |
| 22 | 1915 | Regular | W. Lair Thompson | Lake | Republican |
| 23 | 1917 | Regular | Gus C. Moser | Multnomah | Republican |
| 24 | 1919 | Regular | William T. Vinton | Yamhill | Republican |
| 24 | 1920 | Special | William T. Vinton | Yamhill | Republican |
| 25 | 1921 | Regular Special | Roy W. Ritner | Umatilla | Republican |
| 26 | 1923 | Regular | Jay H. Upton | Crook | Republican |
| 23 | 1925 | Regular | Gus C. Moser | Multnomah | Republican |
| 27 | 1927 | Regular | Henry L. Corbett | Multnomah | Republican |
| 28 | 1929 | Regular | A. W. Norblad | Clatsop | Republican |
| 29 | 1931 | Regular | Willard L. Marks | Linn | Republican |
| 30 | 1933 | Regular Special | Fred E. Kiddle | Union | Republican |
| 27 | 1935 | Regular | Henry L. Corbett | Multnomah | Republican |
| 31 | 1937 | Regular | F. M. Franciscovich | Clatsop | Republican |
| 32 | 1939 | Regular | Robert M. Duncan | Harney | Republican |
| 33 | 1941 | Regular | Dean H. Walker | Polk | Republican |
| 34 | 1943 | Regular | William H. Steiwer | Wheeler | Republican |
| 35 | 1945 | Regular | Howard C. Belton | Clackamas | Republican |
| 36 | 1947 | Regular | Marshall E. Cornett | Klamath | Republican |
| 37 | 1949 | Regular | William E. Walsh | Coos | Republican |
| 38 | 1951 | Regular | Paul L. Patterson | Washington | Republican |
| 39 | 1953 | Regular | Eugene E. Marsh | Yamhill | Republican |
| 40 | 1955 | Regular | Elmo Smith | Grant | Republican |
| 41 | 1957 | Regular Special | Boyd R. Overhulse | Jefferson | Democratic |
| 42 | 1959 | Regular | Walter J. Pearson | Multnomah | Democratic |
| 43 | 1961 | Regular | Harry D. Boivin | Klamath | Democratic |
| 44 | 1963 | Regular Special | Ben Musa | Wasco | Democratic |
| 43 | 1965 | Regular Special | Harry D. Boivin | Klamath | Democratic |
| 45 | 1967 | Regular Special | Eugene "Debbs" Potts | Josephine | Democratic |
| 45 | 1969 | Regular | Eugene "Debbs" Potts | Josephine | Democratic |
| 46 | 1971 | Regular Special | John D. Burns | Multnomah | Democratic |
| 47 | 1973 | Regular | Jason Boe | Douglas | Democratic |
| 47 | 1974 | Special | Jason Boe | Douglas | Democratic |
| 47 | 1975 | Regular | Jason Boe | Douglas | Democratic |
| 47 | 1977 | Regular | Jason Boe | Douglas | Democratic |
| 47 | 1978 | Special | Jason Boe | Douglas | Democratic |
| 47 | 1979 | Regular | Jason Boe | Douglas | Democratic |
| 47 | 1980 | Special | Jason Boe | Douglas | Democratic |
| 48 | 1981 | Regular Special | Fred W. Heard | Klamath | Democratic |
| 49 | 1983 | Regular Special | Edward N. Fadeley | Lane | Democratic |
| 50 | 1985 | Regular | John Kitzhaber | Douglas | Democratic |
| 50 | 1987 | Regular | John Kitzhaber | Douglas | Democratic |
| 50 | 1989 | Regular Special | John Kitzhaber | Douglas | Democratic |
| 50 | 1991 | Regular | John Kitzhaber | Douglas | Democratic |
| 51 | 1993 | Regular | Bill Bradbury | Coos | Democratic |
| 52 | 1995 | Regular Special | Gordon Smith | Umatilla | Republican |
| 53 | 1997 | Regular | Brady L. Adams | Josephine | Republican |
| 53 | 1999 | Regular Special | Brady L. Adams | Josephine | Republican |
| 54 | 2001 | Regular Special | Gene Derfler | Marion | Republican |
| 55 | 2003 | Regular | Peter Courtney | Marion | Democratic |
| 55 | 2005 | Regular | Peter Courtney | Marion | Democratic |
| 55 | 2006 | Special | Peter Courtney | Marion | Democratic |
| 55 | 2007 | Regular | Peter Courtney | Marion | Democratic |
| 55 | 2008 | Special | Peter Courtney | Marion | Democratic |
| 55 | 2009 | Regular | Peter Courtney | Marion | Democratic |
| 55 | 2010 | Special | Peter Courtney | Marion | Democratic |
| 55 | 2011 | Regular | Peter Courtney | Marion | Democratic |
| 55 | 2012 | Regular Special | Peter Courtney | Marion | Democratic |
| 55 | 2013 | Regular Special | Peter Courtney | Marion | Democratic |
| 55 | 2014 | Regular | Peter Courtney | Marion | Democratic |
| 55 | 2015 | Regular | Peter Courtney | Marion | Democratic |
| 55 | 2016 | Regular | Peter Courtney | Marion | Democratic |
| 55 | 2017 | Regular | Peter Courtney | Marion | Democratic |
| 55 | 2018 | Regular Special | Peter Courtney | Marion | Democratic |
| 55 | 2019 | Regular | Peter Courtney | Marion | Democratic |
| 55 | 2020 | Regular Special | Peter Courtney | Marion | Democratic |
| 55 | 2021 | Regular Special | Peter Courtney | Marion | Democratic |
| 55 | 2022 | Regular | Peter Courtney | Marion | Democratic |
| 56 | 2023 | Regular | Rob [Wagner (politician)|Rob Wagner] | Clackamas | Democratic |
| 56 | 2024 | Regular Special | Rob Wagner | Clackamas | Democratic |
| 56 | 2025 | Regular | Rob Wagner | Clackamas | Democratic |