George Frederick Senner Jr. (November 24, 1921 – October 6, 2007) was an American Democratic politician from Arizona.

He graduated from Miami High School, where he played football and was president of his senior class.

Beginning in May 1942, he served with the United States Marine Corps for 27 months in the South Pacific.

In 1952 he earned his law degree from the University of Arizona and was admitted to the bar in October of that year.

Senner voted for many key laws while in Congress, such as the Civil Rights Act of 1964, the Social Security Amendments of 1965, which introduced Medicare (United States) and Medicaid, and the Voting Rights Act of 1965.