Robert Brudenell, 6th Earl of Cardigan (25 April 1760, Westminster – 14 August 1837, Marylebone) succeeded to his title on 24 February 1811, following the death of his uncle James Brudenell, 5th Earl of Cardigan.
Robert Brudenell was a keen cricketer who made eight known appearances in first-class cricket matches between 1790 and 1793. He was an early member of Marylebone Cricket Club (MCC), for whose team he played most of his matches. He sat as Member of Parliament (MP) for Marlborough in both the Parliaments of Great Britain and the United Kingdom from 1797 until 1802.
Robert Brudenell married Penelope Anne, née Cooke (1770–1826). Their daughter Emma married David Pennant (1796–1835) in 1827. Their son James led the Charge of the Light Brigade as Lieutenant General. He succeeded his father as the 7th Earl of Cardigan.