This is a list of governors of the U.S. state of Washington.

List of Washington Territory governors (1853-1889)

#	Name	Took Office	Left Office	Party
1	Isaac Ingalls Stevens	1853	1857	Democrat
2	Fayette McMullen	1857	1859	Democrat
3	Richard D. Gholson	1859	1861	Democrat
4	William Henson Wallace	1861	1861	Republican
5	William Pickering	1862	1866	Republican
6	George E. Cole	1866	1867	Democrat
7	Marshall F. Moore	1867	1869	Republican
8	Alvan Flanders	1869	1870	Republican
9	Edward Selig Salomon	1870	1872	Republican
10	Elisha Peyre Ferry	1872	1880	Republican
11	William Augustus Newell	1880	1884	Republican
12	Watson Carvasso Squire	1884	1887	Republican
13	Eugene Semple	1887	1889	Democrat
14	Miles Conway Moore	1889	1889	Republican

List of Washington State governors (1889-present)

#	Name	Took Office	Left Office	Party
1	Elisha P. Ferry	1889	1893	Republican
2	John McGraw	1893	1897	Republican
3	John Rogers	1897	1901	Democratic-Populist
4	Henry McBride	1901	1905	Republican
5	Albert E. Mead	1905	1909	Republican
6	Samuel G. Cosgrove	1909	1909	Republican
7	Marion E. Hay	1909	1913	Republican
8	Ernest Lister	1913	1919	Democrat
9	Louis F. Hart	1919	1925	Republican
10	Roland H. Hartley	1925	1933	Republican
11	Clarence D. Martin	1933	1941	Democrat
12	Arthur B. Langlie	1941	1945	Republican
13	Monrad C. Wallgren	1945	1949	Democrat
14	Arthur B. Langlie	1949	1957	Republican
15	Albert D. Rosellini	1957	1965	Democrat
16	Daniel J. Evans	1965	1977	Republican
17	Dixie Lee Ray	1977	1981	Democrat
18	John D. Spellman	1981	1985	Republican
19	Booth Gardner	1985	1993	Democrat
20	Mike Lowry	1993	1997	Democrat
21	Gary Locke	1997	2005	Democrat
22	Christine Gregoire*	2005	-	Democrat

* Although Christine Gregoire was officially certified as the winner of the extremely close 2004 gubernatorial election and was inaugurated on January 12, 2005, the election has been contested by the Washington State Republican Party on behalf of her opponent, Dino Rossi. Gregoire is now serving as Governor but her term may be curtailed depending on the outcome of the challenge.