Chichester Fortescue (12 August 1777 – 25 November 1826) briefly served as an Irish Member of Parliament.
He was elected to the Irish House of Commons for Hillsborough in January 1800 but lost his seat when the Parliament of Ireland was abolished by the Act of Union 1800.
He was son of Thomas Fortescue and father of Thomas Fortescue, 1st Baron Clermont, Chichester Parkinson-Fortescue, 1st Baron Carlingford and Harriet Angelina Fortescue.