Robert Frederic Cox (1905–1985) was a British singer, composer and music educator.
Cox was the Professor of Singing (1949–53), Principal (1953–1970) and Principal Emeritus (1970–) at the Royal Manchester College of Music and then a singing teacher at RNCM from 1975 to 1985. He is recognized as one of the finest singing teachers of the second half of the twentieth century, and was himself a student of the renowned Italian tenor Aureliano Pertile.
- Kennedy, Michael and Joyce Bourne (2004) The concise Oxford dictionary, Oxford University Press
- "The Royal Academy of Music - Glenville Hargreaves". Retrieved 2013-11-08.