| J. Antonio Thomas | |
| Birth Date: | 13 September 1912 |
| Birth Place: | Montreal, Quebec, Canada |
| Death Date: | [1] |
| Death Place: | Montreal, Quebec, Canada |
| Riding: | Maisonneuve—Rosemont |
| Term Start: | November 1965 |
| Term End: | June 1968 |
| Riding2: | Maisonneuve, Maisonneuve—Rosemont |
| Term Start2: | June 1968 |
| Term End2: | May 1974 |
| Profession: | foreman, superintendent |
| Party: | Liberal |
Joseph Antonio Thomas (13 September 1912 – 19 January 1998) was a Liberal party member of the House of Commons of Canada. He was a foreman and superintendent by career.
He was first elected at the Maisonneuve—Rosemont riding in the 1965 general election, then after a 1966 realignment of riding boundaries he was re-elected at the Maisonneuve riding in the 1968 federal election. That riding was given the Maisonneuve—Rosemont name in 1970 where in the 1972 election Thomas was re-elected. After completing his term in the 29th Canadian Parliament, he left federal office and did not campaign in any further federal elections.