1938 United States Senate election in Washington

The 1938 United States Senate election in Washington was held on November 8, 1938. Incumbent Democratic U.S. Senator Homer Bone was re-elected to a second term in office over Republican Ewing D. Colvin.

Blanket primary
The blanket primary was held on September 13, 1938.

Democratic

 * Homer Bone, incumbent senator since 1933
 * Otto A. Case, former state treasurer (1933–37) and candidate for governor in 1936

Republican

 * Ewing D. Colvin
 * Howard E. Foster
 * Frank M. Goodwin, candidate for U.S. Senate in 1934

Candidates

 * Ewing D. Colvin (Republican)
 * Homer Bone, incumbent U.S. Senator since 1933 (Democratic)
 * Eugene V. Solie (Socialist Labor)