Lady Charlotte Mary Bacon (née Harley; 12 December 1801 – 9 May 1880) was an English aristocrat.

Byron biographer Benita Eisler has claimed that Byron sexually molested Lady Charlotte when she was eleven years old,[5] stating that "In the period leading up to his marriage to Annabella Milbanke, early in 1815 [Byron]...was enjoying an affair with the coolly promiscuous, forty-year-old militant Whig Lady Oxford [Charlotte’s mother] in the course of which he sexually molested her eleven-year-old daughter, Lady Charlotte Harley, to whom, under the name of Ianthe, he dedicated the seventh printing of Childe Harold, with attendant high-flown verses.”[6] She married Captain (later Major General) Anthony Bacon in 1823.

[7] She stayed with relatives in South Australia between 1865 and 1877, and Charlotte Waters, Northern Territory (now abandoned ruins) was named in her honour by R. R. Knuckey and G. R. McMinn in 1871.

Her son Harley Bacon had contributed food supplies to Charles Todd's survey team.

[8] She died aged 78 at her home 13 Stanhope Place near Hyde Park, London.