Shelagh Hudson Ratcliffe (born 25 January 1952) is a retired British swimmer.

She originated from Fairfield, Liverpool, and attended Calder High School for Girls.

[2] Ratcliffe was born on the Isle of Man and later moved to Liverpool.

[4] She also represented England and won a silver medal in the 200 metres medley and a bronze medal in the 400 metres medley, at the 1970 British Commonwealth Games in Edinburgh, Scotland.

[12] In the late 1960s and early 1970s, Ratcliffe was practicing yoga and was a vegetarian.