William Proxmire
- Born
- 11 November 1915 (90 years old)
- Died
- 14 December 2005
- Place of birth
- Lake Forest, Illinois, USA
- Gender
- Male
Edward William Proxmire (November 11, 1915 – December 15, 2005) was an American politician. A member of the Democratic Party, he served as a United States senator from Wisconsin from 1957 to 1989. He holds the record for being the longest-serving senator from Wisconsin.
