| Joseph Petrarca | |
| State House: | Pennsylvania |
| District: | 55th |
| Term Start: | January 3, 1995[1] |
| Term End: | November 30, 2020 |
| Predecessor: | Joseph Petrarca Sr. |
| Successor: | Jason Silvis |
| Birth Date: | 2 April 1961[2] |
| Birth Place: | Vandergrift, Pennsylvania |
| Party: | Democratic |
| Alma Mater: | Saint Vincent College University of Pittsburgh School of Law |
| Parents: | Joseph Petrarca Sr. |
| Spouse: | Elise |
| Residence: | Vandergrift, Pennsylvania |
| Website: | pahouse.com/petrarca |
Joseph A. "Joe" Petrarca Jr. (born April 2, 1961) was a Democratic member of the Pennsylvania House of Representatives from 1995 to 2020.