Georgina Charlotte Gascoyne-Cecil, Marchioness of Salisbury, VA, CI (née Alderson; 1827 – 20 November 1899) was the wife of British Prime Minister Robert Gascoyne-Cecil, 3rd Marquess of Salisbury. The eldest daughter of a judge, her lack of wealth and social connections earned the disapproval of the 2nd Marquess of Salisbury; despite this, Alderson married his son Robert in 1857.