| Election Name: | 1983 United States Senate special election in Washington |
| Country: | Washington |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1982 United States Senate election in Washington |
| Previous Year: | 1982 |
| Next Election: | 1988 United States Senate election in Washington |
| Next Year: | 1988 |
| Election Date: | November 8, 1983 |
| Image1: | DanielJEvans.jpg |
| Nominee1: | Daniel J. Evans |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 672,326 |
| Percentage1: | 55.41% |
| Nominee2: | Mike Lowry |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 540,981 |
| Percentage2: | 44.59% |
| Map Size: | 275px |
| U.S. Senator | |
| Before Election: | Daniel J. Evans |
| Before Party: | Republican Party (US) |
| After Election: | Daniel J. Evans |
| After Party: | Republican Party (US) |
The 1983 United States Senate special election in Washington was a special election to fill the seat which had been held by longtime Senator Henry Jackson, who unexpectedly died on Three-term former Governor Dan Evans was appointed by Governor John Spellman on and he won the special election over congressman Mike Lowry on Jackson had won a sixth term the previous year, so more than five years remained in the term.
The legislature ordered a primary election on it featured 33 candidates (19 Democrats, 13 Republicans, and one Socialist Labor),[1] [2] setting the modern record for number of candidates in a Washington U.S. Senate election.[3]
As of, this was the last time King County voted for a Republican U.S. Senate candidate. This was the first time since 1923 that Republicans held both Senate seats in the state.