| Joseph Nault | |
| Office: | Ontario MPP |
| Term Start: | 1948 |
| Term End: | 1954 |
| Predecessor: | Romeo Bégin |
| Successor: | Gordon Lavergne |
| Constituency: | Russell |
| Party: | Progressive Conservative |
| Birth Date: | August 19, 1888 |
| Birth Place: | Ottawa, Ontario |
| Death Place: | Ottawa, Ontario |
| Profession: | Merchant |
| Spouse: | |
Joseph Daniel Nault (August 19, 1888 - March 18, 1954) was an Ontario political figure. He represented Russell in the Legislative Assembly of Ontario as a Progressive Conservative from 1948 to 1954.
He was born in Ottawa, Ontario in 1888, the son of Georges Nault. In 1912, he married Alice Charlebois; in 1924, he married Antonia Parisien after the death of his first wife. Nault died in office in 1954.