Aileen Sibell Mary Plunket (née Guinness; 1904–1999) was an Anglo-Irish society hostess. She was one of the "Guinness Golden Girls" who were icons in the 1920s, along with her sisters Maureen and Oonagh.Derek Wilson, ‘Plunket , Aileen Sibell Mary (1904–1999)’, Oxford Dictionary of National Biography, Oxford University Press, 2004; online edn, Jan 2012 accessed 9 Oct 2017
