Sir John Frederick Rossiter KBE (17 December 1913 – 18 January 1988) was an Australian politician. Born in Melbourne to public servant James Alexander Rossiter and Sarah (née Nicholas) Rossiter, he attended Middle Park State School, Melbourne High School and the University of Melbourne, studying for his Bachelor of Arts. He then went to Melbourne Teachers' College and taught from 1937 to 1940 before enlisting in the Royal Australian Air Force, in which he served from 1940 to 1946. Lady Susan Renouf was one of his three children.