The Honourable Dudley Francis Fortescue (4 August 1820 – 2 March 1909) was a British Liberal politician.
Fortescue was elected Member of Parliament for Andover in 1857, a seat he held until 1874.
He was also a Commissioner in Lunacy, a Deputy Lieutenant of County Waterford and Devon and served as High Sheriff of County Waterford in 1870.
Fortescue married his first cousin Lady Camilla Eleanor, daughter of Newton Fellowes, 4th Earl of Portsmouth and Lady Catherine Fortescue, in 1852.
His wife survived him by eleven years and died in August 1920.