John Deacon (disambiguation)

John Deacon (born 1951) is the former bassist of the rock band Queen.

John Deacon may also refer to:

• John Deacon (motorcyclist) (1962–2001)
• John Deacon, wrongly convicted of arson, whose story was shown in Flashover (film)
• John Deacon, former owner of English football club Portsmouth F.C.