Gerard Marshall Vaughan (born 1 December 1946) is a former Australian politician.
He was born in Glen Huntly to David Arthur Vaughan and Mary Therese, née Russell.
He attended state and Catholic schools and received an Associate Diploma of Chemical Engineering from the Royal Melbourne Institute of Technology in 1966.
He received a Diploma of Education from the State College of Victoria in 1973 and a PhD from Monash University in 1978.
He served on a number of committees but was never promoted from the backbench, and he lost preselection to Hong Lim in 1996.