The 1926 United States Senate elections in Indiana took place on November 2, 1926. Incumbent Republican Senator James E. Watson was re-elected to a second full term in office over Democratic attorney Albert Stump.
- William A. Cullop, former U.S. Representative from Vincennes
- L. William Curry, opponent of Prohibition
- John E. Frederick, Kokomo businessman
- George W. Rauch, former U.S. Representative from Marion
- L. Ert Slack, former U.S. Attorney
- Albert Stump, World War I veteran and Indianapolis attorney
Frederick ran with the backing of former U.S. Senator and party boss Thomas Taggart. Curry ran primarily for the modification of the state's "bone dry" prohibition law, rather than national prohibition.
In a non-binding primary, Cullop won with Stump finishing second.
On the first convention ballot, Frederick was first with Cullop second. On the second ballot, Stump passed Cullop for second place. On the third, there was a stampede to his candidacy as Frederick and Cullop supporters abandoned their candidates for Stump.
- William H. Harris (Prohibition)
- Albert Stump, World War I veteran and attorney (Democratic)
- Forrest Wallace (Socialist)
- James E. Watson, incumbent Senator since 1916 (Republican)
|Republican||James E. Watson (incumbent)||522,837||50.04%||4.53|
|Prohibition||William H. Harris||5,420||0.52%||0.55|
- "TAGGART CANDIDATE LOSES IN INDIANA; Democratic Convention Nominates Albert Stump for Race With Watson". The New York Times. 4 July 1926. p. 3.
- "JOHN E. FREDRICK DESK". Howard County History.
- "Our Campaigns - IN US Senate Race - Nov 02, 1926".
- Clerk of the U.S. House of Representatives (1 Mar 1945). "Statistics of the Congressional Election of November 2, 1926" (PDF). U.S. Government Printing Office. p. 16.