| Albrecht, Richard R. | Seattle | 1987-2000 |
| Alhadeff, Kenneth | Seattle | 1996-2009 |
| Allen, John Beard | Seattle | 1899 |
| Anderson, J. S. | Asotin | 1905-1909 |
| Arrasmith, J. W. | Colfax | 1895-1897 |
| Barbieri, Donald K. | Spokane | 2015-2018 |
| Barbre, Verne J. | Ephrata | 1961 |
| Barnard, Frank J. | Seattle | 1899-1910 |
| Baseler, Theodor | Bellevue | 2006-2007 |
| Bellinger, Jacob H. | Colfax | 1891-1893 |
| Binns, John H. | Tacoma | 1945-1949 |
| Blanford, Henry S. | Walla Walla | 1893-1897 |
| Bredstrand, Jacob K. | Vancouver | 2011-2012 |
| Browne, John J. | Spokane | 1905-1912 |
| Buchanan, Bernadett, Student Regent | Spokane | 1999-2000 |
| Camp, John F., Jr. | Vancouver | 1949-1959 |
| Campbell, Phyllis J. | Issaquah | 1991-2003 |
| Canifield, H. W. | Colfax | 1897-1903 |
| Carson, Scott E. | Federal Way | 2007-2020 |
| Cayanan, Arliegh P., Student Regent | Spokane | 2020-2021 |
| Chakravarti, Diptiman “Chuck” | Seattle | 1977-1983 |
| Chilton, Reanne | West Richland | 2022-2023 |
| Christensen, Ericka | Pocatello, ID | 2010-2011 |
| Cochran, Harold A. | Walla Walla | 2007-2016 |
| Cole, Jack C. | Edwall | 1961-1967, 1977-1983 |
| Coman, Edwin T. | Spokane | 1915-1922 |
| Connor, Charles R. | Spokane | 1893-1895 |
| Conover, S. B. | Port Townsend | 1891-1893 |
| Cowles, Elizabeth A. | Spokane | 2000-2011 |
| Cox, Angela, Student Regent | Anchorage, AK | 2003-2004 |
| Crow, Herman D. | Spokane | 1901-1905 |
| Crow, R. M. “Mac” | Oakesdale | 1985-1995 |
| Cunningham, James C. | Spokane | 1912-1917 |
| Daniyelyan, Narek, Student Regent | Vancouver | 2016-2017 |
| Davis, Arthur W. | Spokane | 1923-1945 |
| Davis, Richard A. | Spokane | 1990-2001 |
| Dederer, Michael | Seattle | 1955-1957, 1965-1977 |
| Dunn, Adam D. | Yakima | 1917-1928 |
| Durham, Milton W. | Spokane | 1955-1967 |
| Durkan, Ryan. | Seattle | 2011-2018 |
| Eastman, Darren, Student Regent | Renton | 2001-2002 |
| Edmiston, J. E. | Pomeroy | 1899-1900 |
| Ellis, John W. | Bellevue | 1992-1997 |
| En’Wezoh, Derick, Student Regent | Kennewick | 2008-2009 |
| Ettinger, U. L. | Colfax | 1903-1907 |
| Fabian, John | Port Ludlow | 2004-2005 |
| Fellows, Eugene T. | Spokane | 1891-1893 |
| Ferrucci, Vitt P. | Puyallup | 1980-1986 |
| Forgette, Francois X. | Kennewick | 2005-2014 |
| Frost, Jordan T., Student Regent | Spokane | 2018-2019 |
| Fukai, Robert D. | Spokane | 1998-2002 |
| Gannon, George H. | Mabton | 1937-1942 |
| Gibb, Robert P. | Bellingham | 1973-1979 |
| Gillespie, Ralph T. | Pullman | 1952-1959 |
| Goldmark, Peter | Okanogan | 1996-2005 |
| Goldsworthy, Harry E. | Rosalia | 1942-1947 |
| Goodwin, William N. | Tacoma | 1957-1963 |
| Gordon, William J., Student Regent | Ellensburg | 2007-2008 |
| Gose Sr., Thomas P. | Walla Walla | 1959-1965 |
| Hall, Stanton J. | Everett | 1949-1959 |
| Hamilton, Rodgers H. | Okanogan | 1949-1961 |
| Hayner, Herman H. “Dutch” | Walla Walla | 1965-1977 |
| Hill, Steve R. | Tacoma | 2001-2005 |
| Hopp, George W. | Sedro Woolley | 1891-1892 |
| Horenstein, Brady, Student Regent | Vancouver | 2004-2005 |
| Hulbert, James S. | Mount Vernon | 1922-1933 |
| Hyslop, Thomas | Spokane | 1983-1985 |
| Ingraham, Edward S. | Seattle | 1893-1897 |
| Jennings, Laura | Seattle | 2005-2017 |
| Johnson, Jason, Student Regent | Tacoma | 2002-2003 |
| Johnson, Lee A. | Sunnyside | 1907-1914 |
| Kimbrough, Samuel A. | Spokane | 1933-1942 |
| King, Joe | Tenino | 1996-2006 |
| Kreager, H. Dewayne | Seattle | 1963-1975 |
| Leary, R. D. Dan | Othello | 1980-1989 |
| Leighton, Justin, Student Regent | Puyallup | 2005-2006 |
| Lesh, Daniel | Yakima | 1892-1893 |
| Lukins, Scott B. | Spokane | 1985-1997 |
| Marler, William | Bainbridge Island | 1998-2004 |
| Marr, Chris | Spokane | 2003-2006 |
| Massimino, Kevin J., Student Regent | Kent | 2014-2015 |
| Mays, F. W. D. | Pomeroy | 1900-1901 |
| McAllister, Charles E. | Spokane | 1942-1952 |
| McCluskey, James A. | Spokane | 1947-1957 |
| McCroskey, Robert C. | Garfield | 1897-1905, 1909-1922 |
| McEachern, Robert B. | Redmond | 1981-1987 |
| McGregor, Peter | Hooper | 1905-1914 |
| McWilliams, Edwin J. | Spokane | 1978-1990 |
| Milodragovich, Janelle, Student Regent | Missoula | 1998-1999 |
| Moore, Matthew, Student Regent | Ephrata | 2000-2001 |
| Morgan, Howard W. | Tacoma | 1967-1973 |
| Neff, Lyle W. | Pasco | 1967-1973 |
| Norris, Alyssa, Student Regent | North Pole, Alaska | 2017-2018 |
| Niva, Constance M. | Seattle | 2003-2014 |
| Olsen, Jeanne Rounds | Bellevue | 1983-1985 |
| Orton, Charles W. | Sumner | 1933-1942 |
| Otero, Carmen | Seattle | 1994-2000 |
| Owen, Frances P. | Seattle | 1957-1975 |
| Pantig, Johanna Mae B., Student Regent | Spokane | 2019-2020 |
| Pearson, Belinda K. | Bellevue | 1985-1990 |
| Pease, William M. | Seattle | 1917-1920 |
| Pepper, Louis H. | Seattle | 1986-1996 |
| Perham, Ben A. | Yakima | 1933-1945 |
| Pitluck, Harry | Spokane | 1961-1967 |
| Powell, J. L. | Pullman | 1897 |
| Pruneda, Rafael, Student Regent | Othello | 2012-2013 |
| Ritz, W. A. | Walla Walla | 1915-1937 |
| Robinson, Walter J. | Pomeroy | 1945-1951 |
| Rogers, Alan | Ellensburg | 1949-1961 |
| Romberg, Harold A. | Spokane | 1967-1979 |
| Rowe, Walter R. | Naches | 1928-1933 |
| Schaffer, Lindsay, Student Regent | Spokane | 2013-2014 |
| Scott, Frances L. | Spokane | 1985-1991 |
| Scott, John C. | Sequim | 1951-1955 |
| Sharp, John P. | Ellensburg | 1903-1905 |
| Sims, Ron | Seattle | 2011-2023 |
| Smith, Andrew H. | Tacoma | 1891-1893 |
| Smith, Kyle M., Student Regent | Spokane | 2006-2007 |
| Strausz, Robert W. | Yakima | 1973-1977 |
| Stearns, John W. | Tekoa | 1893-1903 |
| Stimson, Fred S. | Seattle | 1921 |
| Stone, V. Rafael | Seattle | 2000-2011 |
| Tannatt, Thomas R. | Farmington | 1893-1899 |
| Troy, David S. | Jefferson County | 1910-1916 |
| VanderMeulen, Jansen., Student Regent | Sedro-Woolley | 2015-2016 |
| Webster, Kasey, Student Regent | Spokane | 2009-2010 |
| Webster, Kate | Bainbridge Island | 1975-1994 |
| Weisfield, Leo H. | Seattle | 1959-1965 |
| Wiley, William R. | Richland | 1989-1996 |
| Williams, Carl C. | Kennewick | 1945-1949 |
| Williams, Edith | Vashon Island | 1975-1981 |
| Wilmer, F. J. | Rosalia | 1922-1933 |
| Windus, Walter W. | Pullman | 1897 |
| Witt, George M. | Harrington | 1897-1899 |
| Worthy, Michael C | Vancouver | 2006-2018 |
| Wright, Shain, Student Regent | Vancouver | 2021-2022 |
| Youngquist, Iver W. | Bow | 1942-1945 |