The 1920 United States Senate election in Indiana took place on November 2, 1920. Incumbent Republican Senator James E. Watson was re-elected to a full term in office over Thomas Taggart in a rematch of the 1916 special election for the same seat.
General election
Candidates
Culla Bayhinger (Prohibition)
Francis J. Dillon (Farmer–Labor)
Thomas Taggart, former U.S. Senator and mayor of Indianapolis (Democratic)