Thady Windham Thomas Wyndham-Quin, 7th Earl of Dunraven and Mount-Earl (27 October 1939 – 25 March 2011) was an Irish peer.
He was educated at Ludgrove School and Institut Le Rosey, Switzerland. While a schoolboy he was handicapped by polio.
He succeeded to the earldom in 1965 on the death of his father, Richard Wyndham-Quin, 6th Earl of Dunraven.
Lord Dunraven sold Adare Manor and its contents in 1984 to Irish-American businessman Tom Kane, and the manor was converted into the Adare Manor Hotel. Thereafter he lived with his family in a nearby house called Kilgobbin House. He was chairman of the Irish Wheelchair Association for two decades.
In 1969, he married Geraldine McAleer, daughter of Air Commodore Gerard W. McAleer, CBE, MB, BCh. They had one child, a daughter:
Lord Dunraven died at his home on 25 March 2011, aged 71. The earldom and his other titles became extinct on his death.