| Samuel Rettie | |
| Office1: | Member of the Legislative Assembly of Nova Scotia for Colchester |
| Term Start1: | 1871 |
| Term End1: | 1874 |
| Birth Date: | January 23, 1818 |
| Birth Place: | Pictou, Nova Scotia, Canada |
| Death Date: | January 20, 1883 |
| Death Place: | Truro, Nova Scotia, Canada |
| Nationality: | Canadian |
| Party: | Liberal-Conservative |
| Occupation: | merchant, shipbuilder, politician |
Samuel Rettie (January 23, 1818 - January 20, 1883) was a merchant, shipbuilder and political figure in Nova Scotia, Canada. In 1867, he spoke in favour of Canadian Confederation.[1] He represented Colchester County from 1871 to 1874 in the Nova Scotia House of Assembly as a Liberal-Conservative member.[2]
He was born in Pictou, Nova Scotia, the son of John Rettie and Christine Gallie. In 1859, he married Elmira Cox. Rettie was a justice of the peace. He died in Truro at the age of 64.
Samuel Rettie is the Great-Great Uncle of Senator Jim Cowan.