Jill Rosemary Norfolk (born 15 February 1947) is a British former swimmer who competed at the 1964 Summer Olympics.
Biography Norfolk represented the England team at the 1962 British Empire and Commonwealth Games in Perth, Western Australia. She competed in the 110 and 220 yards backstroke events.
During a Blackpool swim meet against Russia in April 1964 she broke the women's world record for the 110 yards backstroke in a time of 69.8 seconds.
At the 1964 Olympic Games in Tokyo she participated in the 100 metres backstroke and medley relay events.
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