Peter Mullen (born 11 January 1942) is a British clergyman ordained in the Church of England. He is the former Rector of St Michael, Cornhill and St Sepulchre-without-Newgate in the City of London. Mullen is Chaplain to the Guild of Air Pilots and Air Navigators, one of the Livery Companies of the City of London and the Anglican Chaplain to the London Stock Exchange, a largely honorific and historical post.