William Harrison Dimmick was an American politician from Pennsylvania who served as a Democratic member of the U.S. House of Representatives for Pennsylvania's 13th congressional district from 1857 to 1861.
- Occupation
- politician, lawyer
- Position held
- United States representative, member of the Pennsylvania State Senate
- Citizenship
- United States
- Born
- December 20, 1815
- Died
- August 2, 1861, August 3, 1861