The 1928 United States Senate election in Indiana took place on November 6, 1928. Incumbent Republican U.S. Senator Arthur Robinson, who had been appointed and elected to finish the unexpired term of Samuel Ralston, was re-elected to a full term in office.
- Charles Ginsberg (Socialist Labor)
- William F. Jackson (Workers)
- Philip K. Reinbold (Socialist)
- Arthur Raymond Robinson, incumbent Senator since 1925 (Republican)
- Arthur L. Gilliom, Indiana Attorney General (Republican)
- Albert Stump (Democratic)
- John Zahnd (National)
|Republican||Arthur R. Robinson (incumbent)||782,144||55.30%||4.68|
|Prohibition||William H. Harris||4,033||0.29%||0.22|
|Socialist||Philip K. Reinbold||3,346||0.24%||0.23|
|Socialist Labor||Charles Ginsberg||443||0.03%||N/A|
|Communist||William F. Jackson||327||0.02%||N/A|
- Verbeek, Ann Gilliom (December 2011). "The League and the Law: Arthur L. Gilliom and the Problem of Due Process in Prohibition-Era Indiana". Indiana Magazine of History. 107: 289–326.
- Clerk of the U.S. House of Representatives (1929). "Statistics of the Presidential and Congressional Election of November 5, 1928" (PDF). U.S. Government Printing Office.
- "Our Campaigns – IN US Senate Race – Nov 06, 1928". www.ourcampaigns.com.