1920 United States Senate election in Wisconsin

The 1920 United States Senate election in Wisconsin was held on November 2, 1920. Incumbent Senator Irvine Lenroot, who had been elected to complete the unexpired term of Paul O. Husting, was re-elected to a full term in office.

Candidates

 * Irvine Lenroot, incumbent Senator since 1918
 * A.C. McHenry
 * James Thompson (Wisconsin politician), former La Crosse County district attorney

Candidates

 * Irvine Lenroot, incumbent Senator (Republican)
 * Clyde D. Mead (Prohibition)
 * Paul Samuel Reinsch, diplomat and professor of political science at the University of Wisconsin (Democratic)
 * James Thompson (Wisconsin politician), former La Crosse County district attorney (La Follette Progressive)
 * Frank J. Weber, former State Assemblyman from Milwaukee (Socialist)