"A Prayer for my Daughter" is a poem by William Butler Yeats written in 1919 and published in 1921 as part of Yeats' collection Michael Robartes and the Dancer. It is written to Anne, his daughter with Georgie Hyde Lees, whom Yeats married after his last marriage proposal to Maud Gonne was rejected in 1916. Yeats wrote the poem while staying in a tower at Thoor Ballylee during the Anglo-Irish War, two days after Anne's birth on 26 February 1919. The poem reflects Yeats's complicated views on Irish Nationalism, sexuality, and is considered an important work of Modernist poetry.