The 1926 United States Senate election in Washington was held on November 2, 1926. Incumbent Republican U.S. Senator Wesley Livsey Jones was re-elected to a fourth term in office over Seattle attorney A. Scott Bullitt.
Frank E. Hammond, one of the losing candidates on the Republican side, ran as a "wet" candidate, opposing the prohibition of alcohol, which was already in effect in Washington state, but not yet nationally.
This was the last time until 1980 that Republicans would win the Class 3 Senate seat in Washington.