|Roles||Competed in Olympic Games|
|Born||15 December 1942 in Dewsbury, West Yorkshire, England (GBR)|
|Measurements||165 cm / 64 kg|
Jean Oldroyd had the following podium finishes at major championships: 1st in the 1958 British Empire and Commonwealth Games 4×110 yards Medlay Relay (with Anita Lonsbrough, Margaret Edwards, and the non-Olymian Anne Marshall). In the 1958 British Empire and Commonwealth Games 110 yards butterfly Oldroyd finished fifth. In the British Empire and Commonwealth Games she competed for England.
|Games||Discipline (Sport) / Event||NOC / Team||Pos||Medal||As|
|1960 Summer Olympics||Swimming (Aquatics)||GBR||Jean Oldroyd|
|100 metres Butterfly, Women (Olympic)||=11|
|4 × 100 metres Medley Relay, Women (Olympic)||Great Britain||5|