Katharine Georgina Lloyd-Williams CBE (14 February 1896 – 10 January 1973) was a British anaesthetist, general practitioner and medical educator.
She attended Queen Anne's School from 1908 to 1915 and Bedford Physical Training College from 1915 to 1917.
She enrolled in the London School of Medicine for Women in 1921 and graduated as MBBS in 1926.
In 1928, she became a resident anaesthetist at the Royal Free, and also opened a general practice in Bloomsbury.
[3] She was elected FFARCS (Fellow of the Faculty of Anaesthetists, Royal College of Surgeons) in 1948, and served as president of the Medical Women's Federation in 1958–59.