The term 'Sailing to Byzantium Poet' refers to the Irish poet William Butler Yeats (W.B. Yeats). He is best known for his poem 'Sailing to Byzantium', which was published in 1928 and is considered one of his greatest works. Yeats was a Nobel Prize-winning poet, playwright, and one of the foremost figures of 20th century literature. He was a major influence on the Modernist movement and his works are still widely read today.