Robert Joseph 'Dolly' Dunn (c. 1941 – 11 July 2009) was an Australian convicted child molester. He was a school teacher by profession, working for the Marist Brothers, a Catholic religious order. Robert 'Dolly' Dunn taught science at Marist Brothers Penshurst, NSW from 1971 to 1987. He began a 20-year jail sentence in 2001 for 24 sexual offences occurring between 1985 and 1995. He was a friend and accomplice of Australian diplomat William Stuart Brown, another convicted child molester.