1970 United States Senate election in Delaware

The 1970 United States Senate election in Delaware took place on November 2, 1970. Incumbent Republican U.S. Senator John J. Williams retired. Republican Party U.S. Representative Bill Roth was elected to succeed him.

Candidates

 * Donald G. Gies, Air Force veteran (American)
 * William Roth, U.S. Representative from Wilmington (Republican)
 * Jacob W. Zimmerman, potato farmer (Democratic)