1920 United States Senate election in Washington

The 1920 United States Senate election in Washington was held on November 2, 1920. Incumbent Republican U.S. Senator Wesley Livsey Jones was re-elected to a third term in office over Farmer-Labor nominee Clemens J. France and former Seattle mayor George F. Cotterill.

Democratic

 * George F. Cotterill, former Mayor of Seattle

Republican

 * Frank Erickson
 * Forest L. Hudson
 * W.M. Inglis
 * Wesley Livsey Jones, incumbent Senator since 1909

Candidates

 * George F. Cotterill, former Mayor of Seattle (Democratic)
 * Clemens J. France, former president of the Municipal League of Seattle and brother of U.S. Senator from Maryland Joseph I. France (Farmer-Labor)
 * Wesley Livsey Jones, incumbent U.S. Senator since 1908 (Republican)