William Muhlenberg Hiester was an American political and military leader from Pennsylvania who served as Democratic Speaker of the Pennsylvania State Senate for the 5th district from 1853 to 1857. He was a member of the Muhlenberg/Hiester Family political dynasty.
- Occupation
- politician, lawyer, military officer
- Position held
- member of the Pennsylvania State Senate
- Citizenship
- United States
- Born
- May 15, 1818
- Died
- August 16, 1878
