Daniel J. Evans Republican Daniel J. Evans Republican The 1983 United States Senate special election in Washington was a special election held to fill the seat which had been held by longtime Senator Henry Jackson, who unexpectedly died on September 1.

[1] Three-term former Governor Dan Evans was appointed by Governor John Spellman on September 8,[2][3] and he won the special election over congressman Mike Lowry on November 8.

The legislature ordered a primary election on October 11;[5] it featured 33 candidates (19 Democrats, 13 Republicans, and one Socialist Labor),[6][7] setting the modern record for number of candidates in a Washington U.S. Senate election.

[8] As of 2025, 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.