Claire Annabel Caroline Grant Duff (25 December 1870 – 12 January 1944) was a poet, writer and high society hostess. She published her memoir A Victorian Childhood in 1932 with Methuen Publishing. She was the eldest daughter of Sir Mountstuart Grant Duff and Anna Julia Webster. She was the author of A Victorian Childhood, which was published in 1932, under the pen name Annabel Jackson.