| Joseph Fornance | |
| State: | Pennsylvania |
| District: | 5th |
| Term Start: | March 4, 1839 |
| Term End: | March 3, 1843 |
| Preceded: | Jacob Fry, Jr. |
| Succeeded: | Jacob Senewell Yost |
| Birth Date: | 18 October 1804 |
| Birth Place: | Lower Merion Township, Pennsylvania, U.S. |
| Restingplace: | Montgomery Cemetery, in West Norriton Township, Pennsylvania |
| Death Place: | Norristown, Pennsylvania, U.S. |
| Party: | Democratic |
Joseph Fornance (October 18, 1804 – November 24, 1852) was an American lawyer and politician who served two terms as a Democratic member of the U.S. House of Representatives from Pennsylvania from 1839 to 1843.
Joseph Fornance born in Lower Merion Township, Pennsylvania. He studied law, was admitted to the bar in 1832, and commenced practice in Norristown, Pennsylvania. He served as president of the council of the Borough of Norristown. He was a member of the Pennsylvania House of Representatives in 1834.
Fornance was elected as a Democrat to the Twenty-sixth and Twenty-seventh Congresses. He was not a candidate for renomination in 1842.
He resumed the practice of his profession, and died in Norristown in 1852. He was interred in Montgomery Cemetery, in West Norriton Township, Pennsylvania, near Norristown.
Fornance nominated future Civil War Major General and Democratic presidential candidate Winfield Scott Hancock for the United States Military Academy at West Point.