| Joseph-Célestin Nadon | |
| Constituency Mp: | Gatineau |
| Parliament: | Canadian |
| Predecessor: | Léon-Joseph Raymond |
| Successor: | Rodolphe Leduc |
| Term Start: | 1949 |
| Term End: | 1953 |
| Office2: | Member of the Legislative Assembly of Quebec for Gatineau |
| Predecessor2: | Georges-Adélard Auger |
| Successor2: | Gérard Desjardins |
| Term Start2: | 1939 |
| Term End2: | 1948 |
| Birth Date: | 11 January 1899 |
| Birth Place: | Sainte-Famille-d'Aumond, Quebec |
| Death Place: | Maniwaki, Quebec |
| Nationality: | Canadian |
| Spouse: | Lucienne Roy |
| Party: | Liberal |
| Otherparty: | Quebec Liberal Party |
| Relations: | Alphonse Fournier, cousin |
Joseph-Célestin Nadon (January 11, 1899 - December 17, 1953) was a Canadian provincial and federal politician.
He entered politics as a municipal councillor in Maniwaki from 1928 to 1934 and was mayor from 1935 to 1939. In 1939, he was elected to the Legislative Assembly of Quebec for the riding of Gatineau. A Liberal, he was re-elected in 1944 and was defeated in 1948. In a 1949 by-election, he was elected to the House of Commons of Canada for the riding of Gatineau. A Liberal, he was re-elected in 1953 and died shortly after in December.