Oregon was admitted to the Union on February 14, 1859. Its current Senators are Democrats Ron Wyden and Jeff Merkley.

Prior to 1906, Senators were elected by the Oregon Legislative Assembly. In 1904, Oregon voters passed a ballot measure that required Senators to be selected by a popular vote and then endorsed by the Legislature. Beginning in 1914, Senators were directly elected by popular vote on the basis of the 17th Amendment to the United States Constitution.

Class 2

#	Senator	Years	Party	Term	Congress	Electoral history
1	Delazon Smith	February 14, 1859 – March 3, 1859	Democratic	1	35	Elected in 1859 Lost re-election
		March 3, 1859 – October 1, 1860		2	36	Legislature failed to elect
2	Edward D. Baker	October 1, 1860 – October 21, 1861	Republican		36 (Continued)	Elected late in 1860 Died
					37
		October 21, 1861 – February 27, 1862
3	Benjamin Stark	February 27, 1862 – December 1, 1862	Democratic			Appointed to continue Baker's term Retired when successor elected
4	Benjamin F. Harding	December 1, 1862 – March 3, 1865	Democratic		37 (Continued)	Elected to finish Baker's term Retired
					38
5	George H. Williams	March 4, 1865 – March 3, 1871	Republican	3	39	Elected in 1865 Lost re-election
					40
					41
6	James K. Kelly	March 4, 1871 – March 3, 1877	Democratic	4	42	Elected in 1871 Retired
					43
					44
7	La Fayette Grover	March 4, 1877 – March 3, 1883	Democratic	5	45	Elected in 1877 Retired
					46
					47
8	Joseph N. Dolph	March 4, 1883 – March 3, 1895	Republican	6	48	Elected in 1883
					49
					50
				7	51	Re-elected in 1889 Lost re-election
					52
					53
9	George W. McBride	March 4, 1895 – March 3, 1901	Republican	8	54	Elected in 1895 Lost renomination
					55
					56
10	John H. Mitchell	March 4, 1901 – December 8, 1905	Republican	9	57	Elected in 1900 Died
					58
					59
		December 8, 1905 – December 21, 1905
11	John M. Gearin	December 21, 1905 – January 23, 1907	Democratic			Appointed to continue Mitchell's term Retired when successor elected
		January 23, 1907 – January 30, 1907
12	Frederick W. Mulkey	January 30, 1907 – March 3, 1907	Republican			Elected to finish Mitchell's term Retired
13	Jonathan Bourne, Jr.	March 4, 1907 – March 3, 1913	Republican	10	60	Elected in 1906 Lost renomination
					61
					62
14	Harry Lane	March 4, 1913 – May 23, 1917	Democratic	11	63	Elected in 1912 Died
					64
					65
		May 23, 1917 – May 29, 1917
15	Charles L. McNary	May 29, 1917 – November 5, 1918	Republican			Appointed to continue Lane's term Retired when successor elected
16	Frederick W. Mulkey	November 6, 1918 – December 17, 1918	Republican			Elected to finish Lane's term Resigned early to give successor preferential seniority
17	Charles L. McNary	December 18, 1918 – February 25, 1944	Republican			Appointed to finish Mulkey's term, having already been elected to the next term
				12	66	Elected in 1918
					67
					68
				13	69	Re-elected in 1924
					70
					71
				14	72	Re-elected in 1930
					73
					74
				15	75	Re-elected in 1936
					76
					77
				16	78	Re-elected in 1942 Died
		February 25, 1944 – March 13, 1944
18	Guy Cordon	March 13, 1944 – January 3, 1955	Republican		78 (Continued)	Appointed to continue McNary's term Elected to finish McNary's term
					79
					80
				17	81	Re-elected in 1948 Lost re-election
					82
					83
19	Richard L. Neuberger	January 3, 1955 – March 9, 1960	Democratic	18	84	Elected in 1954 Died
					85
					86
		March 9, 1960 – March 23, 1960
20	Hall S. Lusk	March 23, 1960 – November 9, 1960	Democratic			Appointed to continue Neuberger's term Retired when successor elected
21	Maurine Brown Neuberger	November 9, 1960 – January 3, 1967	Democratic			Elected to finish her husband's term
				19	87	Elected in 1960 Retired
					88
					89
22	Mark Hatfield	January 3, 1967 – January 3, 1997	Republican	20	90	Elected in 1966
					91
					92
				21	93	Re-elected in 1972
					94
					95
				22	96	Re-elected in 1978
					97
					98
				23	99	Re-elected in 1984
					100
					101
				24	102	Re-elected in 1990 Retired
					103
					104
23	Gordon Smith	January 3, 1997 – January 3, 2009	Republican	25	105	Elected in 1996
					106
					107
				26	108	Re-elected in 2002 Lost re-election 2008
					109
					110
24	Jeff Merkley	January 3, 2009 – Present	Democratic	27	111	Elected in 2008
					112
					113
#	Senator	Years	Party	Term	Congress	Electoral history

Class 3

#	Senator	Years	Party	Term	Congress	Electoral history
1	Joseph Lane	February 14, 1859 – March 3, 1861	Democratic	1	35	Elected in 1859 Retired
					36
2	James W. Nesmith	March 4, 1861 – March 3, 1867	Democratic	2	37	Elected in 1861 Lost re-election
					38
					39
3	Henry W. Corbett	March 4, 1867 – March 3, 1873	Republican	3	40	Elected in 1867 Retired
					41
					42
4	John H. Mitchell	March 4, 1873 – March 3, 1879	Republican	4	43	Elected in 1873 Lost re-election
					44
					45
5	James H. Slater	March 4, 1879 – March 3, 1885	Democratic	5	46	Elected in 1879 Retired
					47
					48
		March 3, 1885 – December 17, 1885		6	49
6	John H. Mitchell	December 17, 1885 – March 3, 1897	Republican		49 (Continued)	Elected late in 1885
					50
					51
				7	52	Re-elected in 1891 Lost re-election
					53
					54
		March 3, 1897 – October 7, 1898		8	55
7	Joseph Simon	October 7, 1898 – March 3, 1903	Republican		55 (Continued)	Elected late in 1898 Retired
					56
					57
8	Charles W. Fulton	March 4, 1903 – March 3, 1909	Republican	9	58	Elected in 1902 Lost re-election
					59
					60
9	George E. Chamberlain	March 4, 1909 – March 3, 1921	Democratic	10	61	Elected in 1908
					62
					63
				11	64	Re-elected in 1914 Lost re-election, 1920
					65
					66
10	Robert N. Stanfield	March 4, 1921 – March 3, 1927	Republican	12	67	Elected in 1920 Lost re-election
					68
					69
11	Frederick Steiwer	March 4, 1927 – January 31, 1938	Republican	13	70	Elected in 1926
					71
					72
				14	73	Re-elected in 1932 Resigned
					74
					75
		January 31, 1938 – February 11, 1938
12	Alfred E. Reames	February 11, 1938 – November 9, 1938	Democratic			Appointed to continue Steiwer's term Retired when successor elected
13	Alexander G. Barry	November 9, 1938 – January 3, 1939	Republican			Elected to finish Steiwer's term Retired
14	Rufus C. Holman	January 3, 1939 – January 3, 1945	Republican	15	76	Elected in 1938 Lost renomination
					77
					78
15	Wayne Morse	January 3, 1945 – January 3, 1969	Republican (until 1952)	16	79	Elected in 1944
					80
					81
				17	82	Re-elected in 1950
			Independent (1952-1955)		82 (Continued)
					83
			Democratic (from 1955)		84
				18	85	Re-elected in 1956
					86
					87
				19	88	Re-elected in 1962 Lost re-election
					89
					90
16	Bob Packwood	January 3, 1969 – October 1, 1995	Republican	20	91	Elected in 1968
					92
					93
				21	94	Re-elected in 1974
					95
					96
				22	97	Re-elected in 1980
					98
					99
				23	100	Re-elected in 1986
					101
					102
				24	103	Re-elected in 1992 Resigned
					104
		October 1, 1995 – February 6, 1996
17	Ron Wyden	February 6, 1996 – Present	Democratic		104 (Continued)	Elected to finish Packwood's term
					105
				25	106	Re-elected in 1998
					107
					108
				26	109	Re-elected in 2004
					110
					111
				27	112	Re-elected in 2010
					113
					114
#	Senator	Years	Party	Term	Congress	Electoral history

See also

• United States congressional delegations from Oregon
• List of United States Representatives from Oregon

• "U. S. Senators from Oregon". Oregon State Archives. http://bluebook.state.or.us/state/elections/elections35.htm. Retrieved May 25, 2011.