1916 United States Senate election in Washington

The 1916 United States Senate election in Washington was held on November 7, 1916. Incumbent Republican Miles Poindexter was running for a second term in office over Democratic former Senator George Turner and Socialist Bruce Rogers.

Primary elections were held on September 12. Poindexter overcame a strong primary challenge from U.S. Representative William E. Humphrey and college president Enoch Albert Bryan.

Candidates

 * Mrs. John B. Allen, widow of the late Senator John B. Allen
 * Enoch Albert Bryan, president of Washington State College
 * Schuyler Duryee
 * William E. Humphrey, U.S. Representative from Seattle
 * Miles Poindexter, incumbent U.S. Senator since 1911
 * William Alvin Spalding

Candidates

 * Robert Bridges, Commissioner of the Port of Seattle
 * George Turner, former U.S. Senator (1897–1903)

Candidates

 * Walter J. Thompson

Results
Thompson was unopposed for the Progressive nomination.