John Walford McLean OBE RNVR (28 February 1925 – 29 June 2009) was a British dentist and dental historian. He was known, in the words of the British Dental Journal, for his "groundbreaking developments in high strength dental ceramics and, in particular, to the introduction of glass-ionomer cements, not to forget his seminal work on the bonding of resins to remaining tooth tissues." He was elected President of the British Society of Restorative Dentistry in 1973 and president of the British Dental Association in 1984, and received the John Tomes Prize for research and the 's Golden Medallion.