Ian & Sylvia were a Canadian folk and country music duo which consisted of Ian and Sylvia Tyson. They began performing together in 1959, married in 1964, and divorced and stopped performing together in 1975.

Ian Dawson Tyson was a Canadian singer-songwriter who wrote several folk songs, including "Four Strong Winds" and "Someday Soon", and performed with partner Sylvia Tyson as the duo Ian & Sylvia.