Robert Leslie Chynoweth (born 7 June 1941) is an Australian politician. He was an Australian Labor Party member of the Australian House of Representatives from 1983 to 1990 and again from 1993 to 1996. Chynoweth was born in Richmond, an inner suburb of Melbourne to a family of Cornish descent.. A redistribution that took place ahead of the 1996 federal election transformed Dunkley from a marginal Labor seat into a seat with a notional Liberal majority. Chynoweth re-contested the redistributed Dunkley but lost to Liberal candidate Bruce Billson.