Cynthia Burke Cary (née Roche, previously Burden; 10 April 1884 – 18 December 1966) was a British-American socialite and art collector from Newport, Rhode Island.

She was born on 10 April 1884 in London to James Roche, 3rd Baron Fermoy (1852–1920), an Irish peer who was a Member of Parliament in the House of Commons, and Frances Ellen Work (1857–1947), an American heiress and socialite.

Her brothers were Maurice Roche, 4th Baron Fermoy, the maternal grandfather of Diana, Princess of Wales, and the Hon.

[6] The couple had a daughter: In 1922, after her first husband's death, Roche married Guy Fairfax Cary Sr. (1879–1950) and they honeymooned at the fishing lodge of Robert Walton Goelet.

Her home and the residue of her estate were received by her son, Guy Fairfax Cary Jr.[20] Through her eldest daughter, she was the grandmother of Sheila Maynard, a clinical social worker who worked in Islamabad,[21] married Nicholas Platt,[9] a career diplomat who served as US ambassador to Pakistan, Zambia and the Philippines,[22] and had 3 sons: Adam Platt, a New York magazine restaurant critic, Oliver Platt (b.