| Ernest Ouellet | |
| Office: | Member of the Legislative Council of Quebec for La Vallière |
| Predecessor: | Adélard Turgeon |
| Successor: | Patrice Tardif |
| Term Start: | 1930 |
| Term End: | 1952 |
| Predecessor2: | Lucien Cannon |
| Successor2: | Joseph-Damase Bégin |
| Term Start2: | 1917 |
| Term End2: | 1930 |
| Birth Date: | 23 December 1882 |
| Birth Place: | Sainte-Germaine-du-Lac-Etchemin, Quebec |
| Death Place: | Sainte-Germaine-du-Lac-Etchemin, Quebec |
| Spouse: | Marie Ferland |
| Party: | Liberal |
Joseph-Charles-Ernest Ouellet (December 23, 1882 - January 4, 1952) was a farmer and political figure in Quebec. He represented Dorchester in the Legislative Assembly of Quebec from 1917 to 1930 as a Liberal.
He was born in Sainte-Germaine-du-Lac-Etchemin, Quebec, the son of Joseph-Sifroid Ouellet and Marie Laflamme. In 1905, he married Marie Ferland.
He was elected to the Legislative Assembly in a by-election on December 15, 1917. He was re-elected in 1919, 1923 and 1927. In 1929 he became a minister without portfolio in the cabinet of Louis-Alexandre Taschereau.
Ouellet resigned his seat in the Quebec assembly after he was named to the Legislative Council of Quebec for La Vallière division on November 27, 1930. He died in office in Sainte-Germaine-du-Lac-Etchemin and was buried in the local cemetery.
He was mayor of Sainte-Germaine-du-Lac-Etchemin from November 1933 to December 1935.