Hawke married Hazel Masterson in 1956 at Perth Trinity Church. They had three children: Susan (born 1957), Stephen (born 1959) and Roslyn (born 1960). Their fourth child, Robert Jr, died in early infancy in 1963. Hawke was named Victorian Father of the Year in 1971, an honour which his wife disputed due to his heavy drinking and womanising. The couple divorced in 1995, after he left her for the writer Blanche d'Alpuget, and the two lived together in Northbridge, a suburb of the North Shore of Sydney. The divorce estranged Hawke from some of his family for a period, although they had reconciled by the 2010s.