| Étienne Poulin | |
| Office: | Member of the Legislative Assembly of Quebec for Rouville |
| Predecessor: | Flavien-Guillaume Bouthillier |
| Successor: | Edmond Lareau |
| Term Start: | 1881 |
| Term End: | 1886 |
| Birth Date: | 27 June 1835 |
| Birth Place: | Sainte-Marie-de-Monnoir, Lower Canada |
| Death Place: | Sainte-Marie-de-Monnoir, Quebec |
| Party: | Conservative |
| Relations: | Joseph-Napoléon Poulin, brother |
Étienne Poulin (June 27, 1835 - October 25, 1901) was a farmer and political figure in Quebec. He represented Rouville in the Legislative Assembly of Quebec from 1881 to 1886 as a Conservative.
He was born in Sainte-Marie-de-Monnoir, Lower Canada, the son of Étienne Poulin and Charlotte Hébert, and was educated at the Collège de Saint-Hyacinthe. In 1854, he married Marcelline Vigeant. Poulin was president of the school board for Marieville from 1868 to 1871 and from 1881 to 1882. He was mayor of Sainte-Marie-de-Monnoir in 1882. He was defeated when he ran for reelection in 1886 and 1890 and again in Iberville in 1897. He died in Sainte-Marie-de-Monnoir at the age of 66.
His older brother Joseph-Napoléon served in the legislative assembly and legislative council for the Province of Canada.