Rosamond 'Corky' McGuinness (4 December 1929 – 16 March 2012, London) was an American music historian.

McGuinness was born in Bridgeport, Connecticut. She came from a Jewish family, her father, Howard Cohan being a dentist, and her mother Adelaide Zeigler being a music teacher. In 1947 she attended Vassar College where she studied music. However the prospects of a career as a concert pianist disappeared after an eye disease left her partially blind in 1950.^[1]

McGuiness was a lecturer at Royal Holloway College from 1969 and became a Professor of Music History there. McGuiness studied the economic and business history of English music and published the Register of Musical Data in London Newspapers.^[2]

She retired in 1995. In February 1991 she made an extended appearance on the Channel 4 discussion programme After Dark alongside Charlotte Davis Kasl and Father Michael Seed, among others.

She married twice, first to Brian McGuinness, the philosopher and later to George Biddlecombe.^[1]

• 1971 English Court Odes, 1660-1820 Oxford: Oxford University Press