1983 United States Senate special election in Washington

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 September 1. Three-term former governor Dan Evans was appointed by Governor John Spellman on September 8, and he won the special election over congressman Mike Lowry on November 8. 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 October 11; it featured 33 candidates (19 Democrats, 13 Republicans, and one Socialist Labor), setting the modern record for number of candidates in a Washington U.S. Senate election.

As of 2024, 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.

Democratic

 * Mike Lowry, U.S. Representative from the 7th congressional district
 * Charles Royer, former Mayor of Seattle
 * James R.F. Curdy
 * Mike Olmer

Republican

 * Daniel J. Evans, incumbent U.S. Senator
 * Lloyd E. Cooney, former KIRO-TV commentator
 * Larry Penberthy

Candidates

 * Daniel J. Evans (R), incumbent U.S. Senator
 * Mike Lowry (D), U.S. Representative from the 7th congressional district