Sorley MacLean was a Scottish Gaelic poet, described by the Scottish Poetry Library as "one of the major Scottish poets of the modern era" because of his "mastery of his chosen medium and his engagement with the European poetic tradition and European politics". Nobel Prize Laureate Seamus Heaney credited MacLean with saving Scottish Gaelic poetry.

Scottish Gaelic, also known as Scots Gaelic or simply Gaelic, is a Goidelic language native to the Gaels of Scotland. As a Goidelic language, Scottish Gaelic, as well as both Irish and Manx, developed out of Old Irish. It became a distinct spoken language sometime in the 13th century in the Middle Irish period, although a common literary language was shared by the Gaels of both Ireland and Scotland until well into the 17th century. Most of modern Scotland was once Gaelic-speaking, as evidenced especially by Gaelic-language place names.